27908125

素因数分解:

$5^4\times 7^1\times {\mathrm{6379}}^1$

素因数の和:6406

約数の個数: 20

約数和(自身を含む): 39862240

約数和(自身を除く): 11954115

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 6379, 31895, 44653, 159475, 223265, 797375, 1116325, 3986875, 5581625, 27908125]

約数ペア:

[(1, 27908125), (5, 5581625), (7, 3986875), (25, 1116325), (35, 797375), (125, 223265), (175, 159475), (625, 44653), (875, 31895), (4375, 6379)]