313644080

素因数分解:

$2^4\times 5^1\times {\mathrm{3920551}}^1$

素因数の和:3920564

約数の個数: 20

約数和(自身を含む): 729222672

約数和(自身を除く): 415578592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3920551, 7841102, 15682204, 19602755, 31364408, 39205510, 62728816, 78411020, 156822040, 313644080]

約数ペア:

[(1, 313644080), (2, 156822040), (4, 78411020), (5, 62728816), (8, 39205510), (10, 31364408), (16, 19602755), (20, 15682204), (40, 7841102), (80, 3920551)]