68475080

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6661}}^1$

素因数の和:6929

約数の個数: 32

約数和(自身を含む): 154691640

約数和(自身を除く): 86216560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6661, 10280, 13322, 26644, 33305, 53288, 66610, 133220, 266440, 1711877, 3423754, 6847508, 8559385, 13695016, 17118770, 34237540, 68475080]

約数ペア:

[(1, 68475080), (2, 34237540), (4, 17118770), (5, 13695016), (8, 8559385), (10, 6847508), (20, 3423754), (40, 1711877), (257, 266440), (514, 133220), (1028, 66610), (1285, 53288), (2056, 33305), (2570, 26644), (5140, 13322), (6661, 10280)]