68590690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139981}}^1$

素因数の和:140002

約数の個数: 24

約数和(自身を含む): 143621532

約数和(自身を除く): 75030842

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 139981, 279962, 699905, 979867, 1399810, 1959734, 4899335, 6859069, 9798670, 13718138, 34295345, 68590690]

約数ペア:

[(1, 68590690), (2, 34295345), (5, 13718138), (7, 9798670), (10, 6859069), (14, 4899335), (35, 1959734), (49, 1399810), (70, 979867), (98, 699905), (245, 279962), (490, 139981)]