18910040

素因数分解:

$2^3\times 5^1\times {\mathrm{472751}}^1$

素因数の和:472762

約数の個数: 16

約数和(自身を含む): 42547680

約数和(自身を除く): 23637640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472751, 945502, 1891004, 2363755, 3782008, 4727510, 9455020, 18910040]

約数ペア:

[(1, 18910040), (2, 9455020), (4, 4727510), (5, 3782008), (8, 2363755), (10, 1891004), (20, 945502), (40, 472751)]