28918825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 39044376

約数和(自身を除く): 10125551

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 881, 1313, 2525, 4405, 6565, 11453, 22025, 32825, 57265, 88981, 286325, 444905, 1156753, 2224525, 5783765, 28918825]

約数ペア:

[(1, 28918825), (5, 5783765), (13, 2224525), (25, 1156753), (65, 444905), (101, 286325), (325, 88981), (505, 57265), (881, 32825), (1313, 22025), (2525, 11453), (4405, 6565)]