8720589040

素因数分解:

$2^4\times 5^1\times {\mathrm{109007363}}^1$

素因数の和:109007376

約数の個数: 20

約数和(自身を含む): 20275369704

約数和(自身を除く): 11554780664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109007363, 218014726, 436029452, 545036815, 872058904, 1090073630, 1744117808, 2180147260, 4360294520, 8720589040]

約数ペア:

[(1, 8720589040), (2, 4360294520), (4, 2180147260), (5, 1744117808), (8, 1090073630), (10, 872058904), (16, 545036815), (20, 436029452), (40, 218014726), (80, 109007363)]