2642927620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^2\times {\mathrm{131}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 5713868160

約数和(自身を除く): 3070940540

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 131, 158, 226, 262, 316, 395, 452, 524, 565, 655, 790, 1130, 1310, 1580, 2260, 2620, 8927, 10349, 12769, 14803, 17854, 20698, 25538, 29606, 35708, 41396, 44635, 51076, 51745, 59212, 63845, 74015, 89270, 103490, 127690, 148030, 178540, 206980, 255380, 296060, 1008751, 1169437, 1672739, 2017502, 2338874, 3345478, 4035004, 4677748, 5043755, 5847185, 6690956, 8363695, 10087510, 11694370, 16727390, 20175020, 23388740, 33454780, 132146381, 264292762, 528585524, 660731905, 1321463810, 2642927620]

約数ペア:

[(1, 2642927620), (2, 1321463810), (4, 660731905), (5, 528585524), (10, 264292762), (20, 132146381), (79, 33454780), (113, 23388740), (131, 20175020), (158, 16727390), (226, 11694370), (262, 10087510), (316, 8363695), (395, 6690956), (452, 5847185), (524, 5043755), (565, 4677748), (655, 4035004), (790, 3345478), (1130, 2338874), (1310, 2017502), (1580, 1672739), (2260, 1169437), (2620, 1008751), (8927, 296060), (10349, 255380), (12769, 206980), (14803, 178540), (17854, 148030), (20698, 127690), (25538, 103490), (29606, 89270), (35708, 74015), (41396, 63845), (44635, 59212), (51076, 51745)]