68902580

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{27127}}^1$

素因数の和:27263

約数の個数: 24

約数和(自身を含む): 145840128

約数和(自身を除く): 76937548

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 27127, 54254, 108508, 135635, 271270, 542540, 3445129, 6890258, 13780516, 17225645, 34451290, 68902580]

約数ペア:

[(1, 68902580), (2, 34451290), (4, 17225645), (5, 13780516), (10, 6890258), (20, 3445129), (127, 542540), (254, 271270), (508, 135635), (635, 108508), (1270, 54254), (2540, 27127)]