18708940

素因数分解:

$2^2\times 5^1\times {\mathrm{935447}}^1$

素因数の和:935456

約数の個数: 12

約数和(自身を含む): 39288816

約数和(自身を除く): 20579876

約数列:

[1, 2, 4, 5, 10, 20, 935447, 1870894, 3741788, 4677235, 9354470, 18708940]

約数ペア:

[(1, 18708940), (2, 9354470), (4, 4677235), (5, 3741788), (10, 1870894), (20, 935447)]