20258540

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3257}}^1$

素因数の和:3577

約数の個数: 24

約数和(自身を含む): 42692832

約数和(自身を除く): 22434292

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3257, 6220, 6514, 13028, 16285, 32570, 65140, 1012927, 2025854, 4051708, 5064635, 10129270, 20258540]

約数ペア:

[(1, 20258540), (2, 10129270), (4, 5064635), (5, 4051708), (10, 2025854), (20, 1012927), (311, 65140), (622, 32570), (1244, 16285), (1555, 13028), (3110, 6514), (3257, 6220)]