28723825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2851}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 39608576

約数和(自身を除く): 10884751

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 2851, 10075, 14255, 37063, 71275, 88381, 185315, 441905, 926575, 1148953, 2209525, 5744765, 28723825]

約数ペア:

[(1, 28723825), (5, 5744765), (13, 2209525), (25, 1148953), (31, 926575), (65, 441905), (155, 185315), (325, 88381), (403, 71275), (775, 37063), (2015, 14255), (2851, 10075)]