18996080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2351}}^1$

素因数の和:2465

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 25626064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2351, 4040, 4702, 8080, 9404, 11755, 18808, 23510, 37616, 47020, 94040, 188080, 237451, 474902, 949804, 1187255, 1899608, 2374510, 3799216, 4749020, 9498040, 18996080]

約数ペア:

[(1, 18996080), (2, 9498040), (4, 4749020), (5, 3799216), (8, 2374510), (10, 1899608), (16, 1187255), (20, 949804), (40, 474902), (80, 237451), (101, 188080), (202, 94040), (404, 47020), (505, 37616), (808, 23510), (1010, 18808), (1616, 11755), (2020, 9404), (2351, 8080), (4040, 4702)]