18238180

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2297}}^1$

素因数の和:2703

約数の個数: 24

約数和(自身を含む): 38413368

約数和(自身を除く): 20175188

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2297, 3970, 4594, 7940, 9188, 11485, 22970, 45940, 911909, 1823818, 3647636, 4559545, 9119090, 18238180]

約数ペア:

[(1, 18238180), (2, 9119090), (4, 4559545), (5, 3647636), (10, 1823818), (20, 911909), (397, 45940), (794, 22970), (1588, 11485), (1985, 9188), (2297, 7940), (3970, 4594)]