64312510

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 118195200

約数和(自身を除く): 53882690

約数列:

[1, 2, 5, 10, 71, 142, 239, 355, 379, 478, 710, 758, 1195, 1895, 2390, 3790, 16969, 26909, 33938, 53818, 84845, 90581, 134545, 169690, 181162, 269090, 452905, 905810, 6431251, 12862502, 32156255, 64312510]

約数ペア:

[(1, 64312510), (2, 32156255), (5, 12862502), (10, 6431251), (71, 905810), (142, 452905), (239, 269090), (355, 181162), (379, 169690), (478, 134545), (710, 90581), (758, 84845), (1195, 53818), (1895, 33938), (2390, 26909), (3790, 16969)]