385804580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2755747}}^1$

素因数の和:2755763

約数の個数: 24

約数和(自身を含む): 925931328

約数和(自身を除く): 540126748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2755747, 5511494, 11022988, 13778735, 19290229, 27557470, 38580458, 55114940, 77160916, 96451145, 192902290, 385804580]

約数ペア:

[(1, 385804580), (2, 192902290), (4, 96451145), (5, 77160916), (7, 55114940), (10, 38580458), (14, 27557470), (20, 19290229), (28, 13778735), (35, 11022988), (70, 5511494), (140, 2755747)]