16672720

素因数分解:

$2^4\times 5^1\times {\mathrm{208409}}^1$

素因数の和:208422

約数の個数: 20

約数和(自身を含む): 38764260

約数和(自身を除く): 22091540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208409, 416818, 833636, 1042045, 1667272, 2084090, 3334544, 4168180, 8336360, 16672720]

約数ペア:

[(1, 16672720), (2, 8336360), (4, 4168180), (5, 3334544), (8, 2084090), (10, 1667272), (16, 1042045), (20, 833636), (40, 416818), (80, 208409)]