20450740

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9049}}^1$

素因数の和:9171

約数の個数: 24

約数和(自身を含む): 43331400

約数和(自身を除く): 22880660

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9049, 18098, 36196, 45245, 90490, 180980, 1022537, 2045074, 4090148, 5112685, 10225370, 20450740]

約数ペア:

[(1, 20450740), (2, 10225370), (4, 5112685), (5, 4090148), (10, 2045074), (20, 1022537), (113, 180980), (226, 90490), (452, 45245), (565, 36196), (1130, 18098), (2260, 9049)]