19660147180

素因数分解:

$2^2\times 5^1\times {\mathrm{983007359}}^1$

素因数の和:983007368

約数の個数: 12

約数和(自身を含む): 41286309120

約数和(自身を除く): 21626161940

約数列:

[1, 2, 4, 5, 10, 20, 983007359, 1966014718, 3932029436, 4915036795, 9830073590, 19660147180]

約数ペア:

[(1, 19660147180), (2, 9830073590), (4, 4915036795), (5, 3932029436), (10, 1966014718), (20, 983007359)]