13129375

素因数分解:

$5^4\times 7^1\times {\mathrm{3001}}^1$

素因数の和:3028

約数の個数: 20

約数和(自身を含む): 18756496

約数和(自身を除く): 5627121

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 3001, 4375, 15005, 21007, 75025, 105035, 375125, 525175, 1875625, 2625875, 13129375]

約数ペア:

[(1, 13129375), (5, 2625875), (7, 1875625), (25, 525175), (35, 375125), (125, 105035), (175, 75025), (625, 21007), (875, 15005), (3001, 4375)]