20139572725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{991}}^1\times {\mathrm{28031}}^1$

素因数の和:29061

約数の個数: 24

約数和(自身を含む): 25861201920

約数和(自身を除く): 5721629195

約数列:

[1, 5, 25, 29, 145, 725, 991, 4955, 24775, 28031, 28739, 140155, 143695, 700775, 718475, 812899, 4064495, 20322475, 27778721, 138893605, 694468025, 805582909, 4027914545, 20139572725]

約数ペア:

[(1, 20139572725), (5, 4027914545), (25, 805582909), (29, 694468025), (145, 138893605), (725, 27778721), (991, 20322475), (4955, 4064495), (24775, 812899), (28031, 718475), (28739, 700775), (140155, 143695)]