28537925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{317}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 38367336

約数和(自身を除く): 9829411

約数列:

[1, 5, 13, 25, 65, 277, 317, 325, 1385, 1585, 3601, 4121, 6925, 7925, 18005, 20605, 87809, 90025, 103025, 439045, 1141517, 2195225, 5707585, 28537925]

約数ペア:

[(1, 28537925), (5, 5707585), (13, 2195225), (25, 1141517), (65, 439045), (277, 103025), (317, 90025), (325, 87809), (1385, 20605), (1585, 18005), (3601, 7925), (4121, 6925)]