15867920

素因数分解:

$2^4\times 5^1\times {\mathrm{198349}}^1$

素因数の和:198362

約数の個数: 20

約数和(自身を含む): 36893100

約数和(自身を除く): 21025180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198349, 396698, 793396, 991745, 1586792, 1983490, 3173584, 3966980, 7933960, 15867920]

約数ペア:

[(1, 15867920), (2, 7933960), (4, 3966980), (5, 3173584), (8, 1983490), (10, 1586792), (16, 991745), (20, 793396), (40, 396698), (80, 198349)]