20320450

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{8647}}^1$

素因数の和:8706

約数の個数: 24

約数和(自身を含む): 38604672

約数和(自身を除く): 18284222

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 8647, 17294, 43235, 86470, 216175, 406409, 432350, 812818, 2032045, 4064090, 10160225, 20320450]

約数ペア:

[(1, 20320450), (2, 10160225), (5, 4064090), (10, 2032045), (25, 812818), (47, 432350), (50, 406409), (94, 216175), (235, 86470), (470, 43235), (1175, 17294), (2350, 8647)]