18804560

素因数分解:

$2^4\times 5^1\times {\mathrm{235057}}^1$

素因数の和:235070

約数の個数: 20

約数和(自身を含む): 43720788

約数和(自身を除く): 24916228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235057, 470114, 940228, 1175285, 1880456, 2350570, 3760912, 4701140, 9402280, 18804560]

約数ペア:

[(1, 18804560), (2, 9402280), (4, 4701140), (5, 3760912), (8, 2350570), (10, 1880456), (16, 1175285), (20, 940228), (40, 470114), (80, 235057)]