20845820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45317}}^1$

素因数の和:45349

約数の個数: 24

約数和(自身を含む): 45680544

約数和(自身を除く): 24834724

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45317, 90634, 181268, 226585, 453170, 906340, 1042291, 2084582, 4169164, 5211455, 10422910, 20845820]

約数ペア:

[(1, 20845820), (2, 10422910), (4, 5211455), (5, 4169164), (10, 2084582), (20, 1042291), (23, 906340), (46, 453170), (92, 226585), (115, 181268), (230, 90634), (460, 45317)]