28119325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2791}}^1$

素因数の和:2845

約数の個数: 24

約数和(自身を含む): 38775296

約数和(自身を除く): 10655971

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 2791, 10075, 13955, 36283, 69775, 86521, 181415, 432605, 907075, 1124773, 2163025, 5623865, 28119325]

約数ペア:

[(1, 28119325), (5, 5623865), (13, 2163025), (25, 1124773), (31, 907075), (65, 432605), (155, 181415), (325, 86521), (403, 69775), (775, 36283), (2015, 13955), (2791, 10075)]