68085140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{72431}}^1$

素因数の和:72487

約数の個数: 24

約数和(自身を含む): 146022912

約数和(自身を除く): 77937772

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 72431, 144862, 289724, 362155, 724310, 1448620, 3404257, 6808514, 13617028, 17021285, 34042570, 68085140]

約数ペア:

[(1, 68085140), (2, 34042570), (4, 17021285), (5, 13617028), (10, 6808514), (20, 3404257), (47, 1448620), (94, 724310), (188, 362155), (235, 289724), (470, 144862), (940, 72431)]