804955220

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{81971}}^1$

素因数の和:82471

約数の個数: 24

約数和(自身を含む): 1693869408

約数和(自身を除く): 888914188

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 81971, 163942, 327884, 409855, 819710, 1639420, 40247761, 80495522, 160991044, 201238805, 402477610, 804955220]

約数ペア:

[(1, 804955220), (2, 402477610), (4, 201238805), (5, 160991044), (10, 80495522), (20, 40247761), (491, 1639420), (982, 819710), (1964, 409855), (2455, 327884), (4910, 163942), (9820, 81971)]