54889640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{105557}}^1$

素因数の和:105581

約数の個数: 32

約数和(自身を含む): 133003080

約数和(自身を除く): 78113440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 105557, 211114, 422228, 527785, 844456, 1055570, 1372241, 2111140, 2744482, 4222280, 5488964, 6861205, 10977928, 13722410, 27444820, 54889640]

約数ペア:

[(1, 54889640), (2, 27444820), (4, 13722410), (5, 10977928), (8, 6861205), (10, 5488964), (13, 4222280), (20, 2744482), (26, 2111140), (40, 1372241), (52, 1055570), (65, 844456), (104, 527785), (130, 422228), (260, 211114), (520, 105557)]