19548080

素因数分解:

$2^4\times 5^1\times {\mathrm{244351}}^1$

素因数の和:244364

約数の個数: 20

約数和(自身を含む): 45449472

約数和(自身を除く): 25901392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244351, 488702, 977404, 1221755, 1954808, 2443510, 3909616, 4887020, 9774040, 19548080]

約数ペア:

[(1, 19548080), (2, 9774040), (4, 4887020), (5, 3909616), (8, 2443510), (10, 1954808), (16, 1221755), (20, 977404), (40, 488702), (80, 244351)]