68838280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245851}}^1$

素因数の和:245869

約数の個数: 32

約数和(自身を含む): 177013440

約数和(自身を除く): 108175160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245851, 491702, 983404, 1229255, 1720957, 1966808, 2458510, 3441914, 4917020, 6883828, 8604785, 9834040, 13767656, 17209570, 34419140, 68838280]

約数ペア:

[(1, 68838280), (2, 34419140), (4, 17209570), (5, 13767656), (7, 9834040), (8, 8604785), (10, 6883828), (14, 4917020), (20, 3441914), (28, 2458510), (35, 1966808), (40, 1720957), (56, 1229255), (70, 983404), (140, 491702), (280, 245851)]