20942920

素因数分解:

$2^3\times 5^1\times {\mathrm{523573}}^1$

素因数の和:523584

約数の個数: 16

約数和(自身を含む): 47121660

約数和(自身を除く): 26178740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523573, 1047146, 2094292, 2617865, 4188584, 5235730, 10471460, 20942920]

約数ペア:

[(1, 20942920), (2, 10471460), (4, 5235730), (5, 4188584), (8, 2617865), (10, 2094292), (20, 1047146), (40, 523573)]