28058225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 39143700

約数和(自身を除く): 11085475

約数列:

[1, 5, 13, 25, 29, 65, 145, 169, 229, 325, 377, 725, 845, 1145, 1885, 2977, 4225, 4901, 5725, 6641, 9425, 14885, 24505, 33205, 38701, 74425, 86333, 122525, 166025, 193505, 431665, 967525, 1122329, 2158325, 5611645, 28058225]

約数ペア:

[(1, 28058225), (5, 5611645), (13, 2158325), (25, 1122329), (29, 967525), (65, 431665), (145, 193505), (169, 166025), (229, 122525), (325, 86333), (377, 74425), (725, 38701), (845, 33205), (1145, 24505), (1885, 14885), (2977, 9425), (4225, 6641), (4901, 5725)]