20415160

素因数分解:

$2^3\times 5^1\times {\mathrm{510379}}^1$

素因数の和:510390

約数の個数: 16

約数和(自身を含む): 45934200

約数和(自身を除く): 25519040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510379, 1020758, 2041516, 2551895, 4083032, 5103790, 10207580, 20415160]

約数ペア:

[(1, 20415160), (2, 10207580), (4, 5103790), (5, 4083032), (8, 2551895), (10, 2041516), (20, 1020758), (40, 510379)]