19722540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328709}}^1$

素因数の和:328721

約数の個数: 24

約数和(自身を含む): 55223280

約数和(自身を除く): 35500740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328709, 657418, 986127, 1314836, 1643545, 1972254, 3287090, 3944508, 4930635, 6574180, 9861270, 19722540]

約数ペア:

[(1, 19722540), (2, 9861270), (3, 6574180), (4, 4930635), (5, 3944508), (6, 3287090), (10, 1972254), (12, 1643545), (15, 1314836), (20, 986127), (30, 657418), (60, 328709)]