81129425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{4231}}^1$

素因数の和:4313

約数の個数: 24

約数和(自身を含む): 110201280

約数和(自身を除く): 29071855

約数列:

[1, 5, 13, 25, 59, 65, 295, 325, 767, 1475, 3835, 4231, 19175, 21155, 55003, 105775, 249629, 275015, 1248145, 1375075, 3245177, 6240725, 16225885, 81129425]

約数ペア:

[(1, 81129425), (5, 16225885), (13, 6240725), (25, 3245177), (59, 1375075), (65, 1248145), (295, 275015), (325, 249629), (767, 105775), (1475, 55003), (3835, 21155), (4231, 19175)]