90780620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648433}}^1$

素因数の和:648449

約数の個数: 24

約数和(自身を含む): 217873824

約数和(自身を除く): 127093204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648433, 1296866, 2593732, 3242165, 4539031, 6484330, 9078062, 12968660, 18156124, 22695155, 45390310, 90780620]

約数ペア:

[(1, 90780620), (2, 45390310), (4, 22695155), (5, 18156124), (7, 12968660), (10, 9078062), (14, 6484330), (20, 4539031), (28, 3242165), (35, 2593732), (70, 1296866), (140, 648433)]