19702040

素因数分解:

$2^3\times 5^1\times {\mathrm{492551}}^1$

素因数の和:492562

約数の個数: 16

約数和(自身を含む): 44329680

約数和(自身を除く): 24627640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 492551, 985102, 1970204, 2462755, 3940408, 4925510, 9851020, 19702040]

約数ペア:

[(1, 19702040), (2, 9851020), (4, 4925510), (5, 3940408), (8, 2462755), (10, 1970204), (20, 985102), (40, 492551)]