20144903840

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1773319}}^1$

素因数の和:1773405

約数の個数: 48

約数和(自身を含む): 48262677120

約数和(自身を除く): 28117773280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 1773319, 3546638, 7093276, 8866595, 14186552, 17733190, 28373104, 35466380, 56746208, 70932760, 125905649, 141865520, 251811298, 283731040, 503622596, 629528245, 1007245192, 1259056490, 2014490384, 2518112980, 4028980768, 5036225960, 10072451920, 20144903840]

約数ペア:

[(1, 20144903840), (2, 10072451920), (4, 5036225960), (5, 4028980768), (8, 2518112980), (10, 2014490384), (16, 1259056490), (20, 1007245192), (32, 629528245), (40, 503622596), (71, 283731040), (80, 251811298), (142, 141865520), (160, 125905649), (284, 70932760), (355, 56746208), (568, 35466380), (710, 28373104), (1136, 17733190), (1420, 14186552), (2272, 8866595), (2840, 7093276), (5680, 3546638), (11360, 1773319)]