20579740

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3797}}^1$

素因数の和:4077

約数の個数: 24

約数和(自身を含む): 43388352

約数和(自身を除く): 22808612

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3797, 5420, 7594, 15188, 18985, 37970, 75940, 1028987, 2057974, 4115948, 5144935, 10289870, 20579740]

約数ペア:

[(1, 20579740), (2, 10289870), (4, 5144935), (5, 4115948), (10, 2057974), (20, 1028987), (271, 75940), (542, 37970), (1084, 18985), (1355, 15188), (2710, 7594), (3797, 5420)]