20355820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9007}}^1$

素因数の和:9129

約数の個数: 24

約数和(自身を含む): 43130304

約数和(自身を除く): 22774484

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9007, 18014, 36028, 45035, 90070, 180140, 1017791, 2035582, 4071164, 5088955, 10177910, 20355820]

約数ペア:

[(1, 20355820), (2, 10177910), (4, 5088955), (5, 4071164), (10, 2035582), (20, 1017791), (113, 180140), (226, 90070), (452, 45035), (565, 36028), (1130, 18014), (2260, 9007)]