18128625

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{1667}}^1$

素因数の和:1714

約数の個数: 32

約数和(自身を含む): 31224960

約数和(自身を除く): 13096335

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 725, 1667, 2175, 3625, 5001, 8335, 10875, 25005, 41675, 48343, 125025, 145029, 208375, 241715, 625125, 725145, 1208575, 3625725, 6042875, 18128625]

約数ペア:

[(1, 18128625), (3, 6042875), (5, 3625725), (15, 1208575), (25, 725145), (29, 625125), (75, 241715), (87, 208375), (125, 145029), (145, 125025), (375, 48343), (435, 41675), (725, 25005), (1667, 10875), (2175, 8335), (3625, 5001)]