920601980

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{206413}}^1$

素因数の和:206645

約数の個数: 24

約数和(自身を含む): 1941942912

約数和(自身を除く): 1021340932

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 206413, 412826, 825652, 1032065, 2064130, 4128260, 46030099, 92060198, 184120396, 230150495, 460300990, 920601980]

約数ペア:

[(1, 920601980), (2, 460300990), (4, 230150495), (5, 184120396), (10, 92060198), (20, 46030099), (223, 4128260), (446, 2064130), (892, 1032065), (1115, 825652), (2230, 412826), (4460, 206413)]