18575625

素因数分解:

$3^1\times 5^4\times {\mathrm{9907}}^1$

素因数の和:9930

約数の個数: 20

約数和(自身を含む): 30952592

約数和(自身を除く): 12376967

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 9907, 29721, 49535, 148605, 247675, 743025, 1238375, 3715125, 6191875, 18575625]

約数ペア:

[(1, 18575625), (3, 6191875), (5, 3715125), (15, 1238375), (25, 743025), (75, 247675), (125, 148605), (375, 49535), (625, 29721), (1875, 9907)]