20646040

素因数分解:

$2^3\times 5^1\times {\mathrm{516151}}^1$

素因数の和:516162

約数の個数: 16

約数和(自身を含む): 46453680

約数和(自身を除く): 25807640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 516151, 1032302, 2064604, 2580755, 4129208, 5161510, 10323020, 20646040]

約数ペア:

[(1, 20646040), (2, 10323020), (4, 5161510), (5, 4129208), (8, 2580755), (10, 2064604), (20, 1032302), (40, 516151)]