19199260

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8807}}^1$

素因数の和:8925

約数の個数: 24

約数和(自身を含む): 40692960

約数和(自身を除く): 21493700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8807, 17614, 35228, 44035, 88070, 176140, 959963, 1919926, 3839852, 4799815, 9599630, 19199260]

約数ペア:

[(1, 19199260), (2, 9599630), (4, 4799815), (5, 3839852), (10, 1919926), (20, 959963), (109, 176140), (218, 88070), (436, 44035), (545, 35228), (1090, 17614), (2180, 8807)]