19805820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{330097}}^1$

素因数の和:330109

約数の個数: 24

約数和(自身を含む): 55456464

約数和(自身を除く): 35650644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 330097, 660194, 990291, 1320388, 1650485, 1980582, 3300970, 3961164, 4951455, 6601940, 9902910, 19805820]

約数ペア:

[(1, 19805820), (2, 9902910), (3, 6601940), (4, 4951455), (5, 3961164), (6, 3300970), (10, 1980582), (12, 1650485), (15, 1320388), (20, 990291), (30, 660194), (60, 330097)]