28787525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 38867304

約数和(自身を除く): 10079779

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 877, 1313, 2525, 4385, 6565, 11401, 21925, 32825, 57005, 88577, 285025, 442885, 1151501, 2214425, 5757505, 28787525]

約数ペア:

[(1, 28787525), (5, 5757505), (13, 2214425), (25, 1151501), (65, 442885), (101, 285025), (325, 88577), (505, 57005), (877, 32825), (1313, 21925), (2525, 11401), (4385, 6565)]