2639620

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{691}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 5580288

約数和(自身を除く): 2940668

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 691, 764, 955, 1382, 1910, 2764, 3455, 3820, 6910, 13820, 131981, 263962, 527924, 659905, 1319810, 2639620]

約数ペア:

[(1, 2639620), (2, 1319810), (4, 659905), (5, 527924), (10, 263962), (20, 131981), (191, 13820), (382, 6910), (691, 3820), (764, 3455), (955, 2764), (1382, 1910)]