28916225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{461}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 38898552

約数和(自身を除く): 9982327

約数列:

[1, 5, 13, 25, 65, 193, 325, 461, 965, 2305, 2509, 4825, 5993, 11525, 12545, 29965, 62725, 88973, 149825, 444865, 1156649, 2224325, 5783245, 28916225]

約数ペア:

[(1, 28916225), (5, 5783245), (13, 2224325), (25, 1156649), (65, 444865), (193, 149825), (325, 88973), (461, 62725), (965, 29965), (2305, 12545), (2509, 11525), (4825, 5993)]