18804080

素因数分解:

$2^4\times 5^1\times {\mathrm{235051}}^1$

素因数の和:235064

約数の個数: 20

約数和(自身を含む): 43719672

約数和(自身を除く): 24915592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235051, 470102, 940204, 1175255, 1880408, 2350510, 3760816, 4701020, 9402040, 18804080]

約数ペア:

[(1, 18804080), (2, 9402040), (4, 4701020), (5, 3760816), (8, 2350510), (10, 1880408), (16, 1175255), (20, 940204), (40, 470102), (80, 235051)]