981995620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1223}}^1\times {\mathrm{2113}}^1$

素因数の和:3364

約数の個数: 48

約数和(自身を含む): 2173530240

約数和(自身を除く): 1191534620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1223, 2113, 2446, 4226, 4892, 6115, 8452, 10565, 12230, 21130, 23237, 24460, 40147, 42260, 46474, 80294, 92948, 116185, 160588, 200735, 232370, 401470, 464740, 802940, 2584199, 5168398, 10336796, 12920995, 25841990, 49099781, 51683980, 98199562, 196399124, 245498905, 490997810, 981995620]

約数ペア:

[(1, 981995620), (2, 490997810), (4, 245498905), (5, 196399124), (10, 98199562), (19, 51683980), (20, 49099781), (38, 25841990), (76, 12920995), (95, 10336796), (190, 5168398), (380, 2584199), (1223, 802940), (2113, 464740), (2446, 401470), (4226, 232370), (4892, 200735), (6115, 160588), (8452, 116185), (10565, 92948), (12230, 80294), (21130, 46474), (23237, 42260), (24460, 40147)]