20606660

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2347}}^1$

素因数の和:2795

約数の個数: 24

約数和(自身を含む): 43391040

約数和(自身を除く): 22784380

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2347, 4390, 4694, 8780, 9388, 11735, 23470, 46940, 1030333, 2060666, 4121332, 5151665, 10303330, 20606660]

約数ペア:

[(1, 20606660), (2, 10303330), (4, 5151665), (5, 4121332), (10, 2060666), (20, 1030333), (439, 46940), (878, 23470), (1756, 11735), (2195, 9388), (2347, 8780), (4390, 4694)]