389800

素因数分解:

$2^3\times 5^2\times {\mathrm{1949}}^1$

素因数の和:1965

約数の個数: 24

約数和(自身を含む): 906750

約数和(自身を除く): 516950

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1949, 3898, 7796, 9745, 15592, 19490, 38980, 48725, 77960, 97450, 194900, 389800]

約数ペア:

[(1, 389800), (2, 194900), (4, 97450), (5, 77960), (8, 48725), (10, 38980), (20, 19490), (25, 15592), (40, 9745), (50, 7796), (100, 3898), (200, 1949)]