20157625

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{1231}}^1$

素因数の和:1377

約数の個数: 16

約数和(自身を含む): 25369344

約数和(自身を除く): 5211719

約数列:

[1, 5, 25, 125, 131, 655, 1231, 3275, 6155, 16375, 30775, 153875, 161261, 806305, 4031525, 20157625]

約数ペア:

[(1, 20157625), (5, 4031525), (25, 806305), (125, 161261), (131, 153875), (655, 30775), (1231, 16375), (3275, 6155)]