13820080

素因数分解:

$2^4\times 5^1\times {\mathrm{172751}}^1$

素因数の和:172764

約数の個数: 20

約数和(自身を含む): 32131872

約数和(自身を除く): 18311792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 172751, 345502, 691004, 863755, 1382008, 1727510, 2764016, 3455020, 6910040, 13820080]

約数ペア:

[(1, 13820080), (2, 6910040), (4, 3455020), (5, 2764016), (8, 1727510), (10, 1382008), (16, 863755), (20, 691004), (40, 345502), (80, 172751)]