18048125

素因数分解:

$5^4\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:518

約数の個数: 20

約数和(自身を含む): 22942656

約数和(自身を除く): 4894531

約数列:

[1, 5, 25, 67, 125, 335, 431, 625, 1675, 2155, 8375, 10775, 28877, 41875, 53875, 144385, 269375, 721925, 3609625, 18048125]

約数ペア:

[(1, 18048125), (5, 3609625), (25, 721925), (67, 269375), (125, 144385), (335, 53875), (431, 41875), (625, 28877), (1675, 10775), (2155, 8375)]