20447380

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1657}}^1$

素因数の和:2283

約数の個数: 24

約数和(自身を含む): 43035048

約数和(自身を除く): 22587668

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 1657, 2468, 3085, 3314, 6170, 6628, 8285, 12340, 16570, 33140, 1022369, 2044738, 4089476, 5111845, 10223690, 20447380]

約数ペア:

[(1, 20447380), (2, 10223690), (4, 5111845), (5, 4089476), (10, 2044738), (20, 1022369), (617, 33140), (1234, 16570), (1657, 12340), (2468, 8285), (3085, 6628), (3314, 6170)]