68587540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{489911}}^1$

素因数の和:489927

約数の個数: 24

約数和(自身を含む): 164610432

約数和(自身を除く): 96022892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 489911, 979822, 1959644, 2449555, 3429377, 4899110, 6858754, 9798220, 13717508, 17146885, 34293770, 68587540]

約数ペア:

[(1, 68587540), (2, 34293770), (4, 17146885), (5, 13717508), (7, 9798220), (10, 6858754), (14, 4899110), (20, 3429377), (28, 2449555), (35, 1959644), (70, 979822), (140, 489911)]