874802020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1410971}}^1$

素因数の和:1411011

約数の個数: 24

約数和(自身を含む): 1896346368

約数和(自身を除く): 1021544348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1410971, 2821942, 5643884, 7054855, 14109710, 28219420, 43740101, 87480202, 174960404, 218700505, 437401010, 874802020]

約数ペア:

[(1, 874802020), (2, 437401010), (4, 218700505), (5, 174960404), (10, 87480202), (20, 43740101), (31, 28219420), (62, 14109710), (124, 7054855), (155, 5643884), (310, 2821942), (620, 1410971)]