40209940

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10103}}^1$

素因数の和:10311

約数の個数: 24

約数和(自身を含む): 84873600

約数和(自身を除く): 44663660

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 10103, 20206, 40412, 50515, 101030, 202060, 2010497, 4020994, 8041988, 10052485, 20104970, 40209940]

約数ペア:

[(1, 40209940), (2, 20104970), (4, 10052485), (5, 8041988), (10, 4020994), (20, 2010497), (199, 202060), (398, 101030), (796, 50515), (995, 40412), (1990, 20206), (3980, 10103)]