39942040

素因数分解:

$2^3\times 5^1\times {\mathrm{998551}}^1$

素因数の和:998562

約数の個数: 16

約数和(自身を含む): 89869680

約数和(自身を除く): 49927640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 998551, 1997102, 3994204, 4992755, 7988408, 9985510, 19971020, 39942040]

約数ペア:

[(1, 39942040), (2, 19971020), (4, 9985510), (5, 7988408), (8, 4992755), (10, 3994204), (20, 1997102), (40, 998551)]