3968980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1039}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 8386560

約数和(自身を除く): 4417580

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1039, 1910, 2078, 3820, 4156, 5195, 10390, 20780, 198449, 396898, 793796, 992245, 1984490, 3968980]

約数ペア:

[(1, 3968980), (2, 1984490), (4, 992245), (5, 793796), (10, 396898), (20, 198449), (191, 20780), (382, 10390), (764, 5195), (955, 4156), (1039, 3820), (1910, 2078)]