Forum: Aliquot Sequences
2019-11-30, 04:00
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-11-25, 07:14
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Replies: 40
Views: 10,312
Thanks for the updates! I'll add these to my...
Thanks for the updates! I'll add these to my list, have also found a number
of others since my last update. I suspect most of those Paul found and I
missed are due to the factors being beyond the...
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Forum: Aliquot Sequences
2019-11-14, 10:10
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-11-06, 09:39
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Replies: 40
Views: 10,312
Thanks Ed, I really hope the new pairs are...
Thanks Ed, I really hope the new pairs are useful, and would love to hear how they are useful!
In the future I'd like to post the pairs list more often, but without creating a new post each...
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Forum: Aliquot Sequences
2019-10-28, 08:22
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-10-28, 07:12
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-10-23, 06:51
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-08-16, 07:59
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2019-08-15, 11:22
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2018-12-04, 06:33
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Replies: 40
Views: 10,312
760 pairs!
I've found quite a few in the...
760 pairs!
I've found quite a few in the last few weeks, including some new largest pairs,
as I had the idea to search on (1+I)^m * (1+2I)^n * (1+4I) (multiplied by extra prime factors) which...
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Forum: Aliquot Sequences
2018-11-30, 08:18
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Replies: 40
Views: 10,312
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Forum: Information & Answers
2018-09-24, 12:16
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Replies: 7
Views: 2,037
I'm not sure how to respond, but anyway!...
I'm not sure how to respond, but anyway! :smile::davar55::shock: I used a few trials, but not that many!
It was interesting exploring how far I could push this test, I got over 1000 but then...
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Forum: Information & Answers
2018-09-18, 10:40
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Replies: 7
Views: 2,037
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Forum: Aliquot Sequences
2018-06-24, 08:27
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2018-06-17, 07:58
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2018-04-23, 08:08
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Replies: 4
Views: 3,698
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Forum: Aliquot Sequences
2018-01-11, 11:57
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Replies: 40
Views: 10,312
I discovered that pari when writing a...
I discovered that pari when writing a factorisation to a file leaves it on one line! So with
a bit of extra find/replace manipulation in Word here is a list of the pairs with factorisations.
...
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Forum: Factoring
2017-12-18, 12:40
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Replies: 507
Views: 70,497
Sean Irvine? I was working on factorial numbers...
Sean Irvine? I was working on factorial numbers +-1 well over 10 years ago and had a web page on them but haven't looked at them for a very long time. I remember you sent me lots of factors! Mainly...
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Forum: Aliquot Sequences
2017-12-14, 10:05
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2017-12-03, 08:09
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Replies: 107
Views: 23,409
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Forum: Aliquot Sequences
2017-08-28, 09:11
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Replies: 40
Views: 10,312
A big update, now have 423 pairs! Many of these...
A big update, now have 423 pairs! Many of these come from searching a common factor
with 4 extra small factors which I had done very little with earlier. Plus also many from
3 extra small factors
...
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Forum: Aliquot Sequences
2017-08-22, 09:00
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Replies: 37
Views: 11,972
Big congratulations on reaching this limit,...
Big congratulations on reaching this limit, doesn't seem that long ago we were finding 14 and 15 digit pairs! Do you have any estimates on how long getting to 20d will take? That will be a big...
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Forum: Aliquot Sequences
2017-07-02, 02:48
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Replies: 124
Views: 20,536
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Forum: Aliquot Sequences
2017-05-08, 07:49
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Replies: 40
Views: 10,312
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Forum: Aliquot Sequences
2017-02-21, 10:29
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Replies: 40
Views: 10,312
When I was doing the searching I posted about...
When I was doing the searching I posted about earlier, I searched through some of the sage packages such as mpmath and couldn't find anything else to caculate sigma for gaussian integers. You can...
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