20542220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44657}}^1$

素因数の和:44689

約数の個数: 24

約数和(自身を含む): 45015264

約数和(自身を除く): 24473044

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44657, 89314, 178628, 223285, 446570, 893140, 1027111, 2054222, 4108444, 5135555, 10271110, 20542220]

約数ペア:

[(1, 20542220), (2, 10271110), (4, 5135555), (5, 4108444), (10, 2054222), (20, 1027111), (23, 893140), (46, 446570), (92, 223285), (115, 178628), (230, 89314), (460, 44657)]