20625355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1314

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 5582645

約数列:

[1, 5, 19, 95, 199, 995, 1091, 3781, 5455, 18905, 20729, 103645, 217109, 1085545, 4125071, 20625355]

約数ペア:

[(1, 20625355), (5, 4125071), (19, 1085545), (95, 217109), (199, 103645), (995, 20729), (1091, 18905), (3781, 5455)]