289916240

素因数分解:

$2^4\times 5^1\times {\mathrm{3623953}}^1$

素因数の和:3623966

約数の個数: 20

約数和(自身を含む): 674055444

約数和(自身を除く): 384139204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3623953, 7247906, 14495812, 18119765, 28991624, 36239530, 57983248, 72479060, 144958120, 289916240]

約数ペア:

[(1, 289916240), (2, 144958120), (4, 72479060), (5, 57983248), (8, 36239530), (10, 28991624), (16, 18119765), (20, 14495812), (40, 7247906), (80, 3623953)]