15680625

素因数分解:

$3^1\times 5^4\times {\mathrm{8363}}^1$

素因数の和:8386

約数の個数: 20

約数和(自身を含む): 26129136

約数和(自身を除く): 10448511

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 8363, 25089, 41815, 125445, 209075, 627225, 1045375, 3136125, 5226875, 15680625]

約数ペア:

[(1, 15680625), (3, 5226875), (5, 3136125), (15, 1045375), (25, 627225), (75, 209075), (125, 125445), (375, 41815), (625, 25089), (1875, 8363)]