389951510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{81071}}^1$

素因数の和:81128

約数の個数: 32

約数和(自身を含む): 776345472

約数和(自身を除く): 386393962

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 81071, 162142, 405355, 810710, 1053923, 2107846, 2999627, 5269615, 5999254, 10539230, 14998135, 29996270, 38995151, 77990302, 194975755, 389951510]

約数ペア:

[(1, 389951510), (2, 194975755), (5, 77990302), (10, 38995151), (13, 29996270), (26, 14998135), (37, 10539230), (65, 5999254), (74, 5269615), (130, 2999627), (185, 2107846), (370, 1053923), (481, 810710), (962, 405355), (2405, 162142), (4810, 81071)]