20125252225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{3917}}^1\times {\mathrm{15809}}^1$

素因数の和:19749

約数の個数: 24

約数和(自身を含む): 26883513720

約数和(自身を除く): 6758261495

約数列:

[1, 5, 13, 25, 65, 325, 3917, 15809, 19585, 50921, 79045, 97925, 205517, 254605, 395225, 1027585, 1273025, 5137925, 61923853, 309619265, 805010089, 1548096325, 4025050445, 20125252225]

約数ペア:

[(1, 20125252225), (5, 4025050445), (13, 1548096325), (25, 805010089), (65, 309619265), (325, 61923853), (3917, 5137925), (15809, 1273025), (19585, 1027585), (50921, 395225), (79045, 254605), (97925, 205517)]