20570925

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1747}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 34246816

約数和(自身を除く): 13675891

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1747, 2355, 3925, 5241, 8735, 11775, 26205, 43675, 131025, 274279, 822837, 1371395, 4114185, 6856975, 20570925]

約数ペア:

[(1, 20570925), (3, 6856975), (5, 4114185), (15, 1371395), (25, 822837), (75, 274279), (157, 131025), (471, 43675), (785, 26205), (1747, 11775), (2355, 8735), (3925, 5241)]