20422040

素因数分解:

$2^3\times 5^1\times {\mathrm{510551}}^1$

素因数の和:510562

約数の個数: 16

約数和(自身を含む): 45949680

約数和(自身を除く): 25527640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510551, 1021102, 2042204, 2552755, 4084408, 5105510, 10211020, 20422040]

約数ペア:

[(1, 20422040), (2, 10211020), (4, 5105510), (5, 4084408), (8, 2552755), (10, 2042204), (20, 1021102), (40, 510551)]