20646760

素因数分解:

$2^3\times 5^1\times {\mathrm{516169}}^1$

素因数の和:516180

約数の個数: 16

約数和(自身を含む): 46455300

約数和(自身を除く): 25808540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 516169, 1032338, 2064676, 2580845, 4129352, 5161690, 10323380, 20646760]

約数ペア:

[(1, 20646760), (2, 10323380), (4, 5161690), (5, 4129352), (8, 2580845), (10, 2064676), (20, 1032338), (40, 516169)]