68940140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{43633}}^1$

素因数の和:43721

約数の個数: 24

約数和(自身を含む): 146610240

約数和(自身を除く): 77670100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 43633, 87266, 174532, 218165, 436330, 872660, 3447007, 6894014, 13788028, 17235035, 34470070, 68940140]

約数ペア:

[(1, 68940140), (2, 34470070), (4, 17235035), (5, 13788028), (10, 6894014), (20, 3447007), (79, 872660), (158, 436330), (316, 218165), (395, 174532), (790, 87266), (1580, 43633)]