12840125

素因数分解:

$5^3\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:893

約数の個数: 16

約数和(自身を含む): 16161600

約数和(自身を除く): 3321475

約数列:

[1, 5, 25, 125, 139, 695, 739, 3475, 3695, 17375, 18475, 92375, 102721, 513605, 2568025, 12840125]

約数ペア:

[(1, 12840125), (5, 2568025), (25, 513605), (125, 102721), (139, 92375), (695, 18475), (739, 17375), (3475, 3695)]