818442920

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{53987}}^1$

素因数の和:54377

約数の個数: 32

約数和(自身を含む): 1846389600

約数和(自身を除く): 1027946680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 7580, 15160, 53987, 107974, 215948, 269935, 431896, 539870, 1079740, 2159480, 20461073, 40922146, 81844292, 102305365, 163688584, 204610730, 409221460, 818442920]

約数ペア:

[(1, 818442920), (2, 409221460), (4, 204610730), (5, 163688584), (8, 102305365), (10, 81844292), (20, 40922146), (40, 20461073), (379, 2159480), (758, 1079740), (1516, 539870), (1895, 431896), (3032, 269935), (3790, 215948), (7580, 107974), (15160, 53987)]