20475580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6871}}^1$

素因数の和:7029

約数の個数: 24

約数和(自身を含む): 43293600

約数和(自身を除く): 22818020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6871, 13742, 27484, 34355, 68710, 137420, 1023779, 2047558, 4095116, 5118895, 10237790, 20475580]

約数ペア:

[(1, 20475580), (2, 10237790), (4, 5118895), (5, 4095116), (10, 2047558), (20, 1023779), (149, 137420), (298, 68710), (596, 34355), (745, 27484), (1490, 13742), (2980, 6871)]