1520408020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2452271}}^1$

素因数の和:2452311

約数の個数: 24

約数和(自身を含む): 3295853568

約数和(自身を除く): 1775445548

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2452271, 4904542, 9809084, 12261355, 24522710, 49045420, 76020401, 152040802, 304081604, 380102005, 760204010, 1520408020]

約数ペア:

[(1, 1520408020), (2, 760204010), (4, 380102005), (5, 304081604), (10, 152040802), (20, 76020401), (31, 49045420), (62, 24522710), (124, 12261355), (155, 9809084), (310, 4904542), (620, 2452271)]