18284120

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2297}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 41364000

約数和(自身を除く): 23079880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2297, 3980, 4594, 7960, 9188, 11485, 18376, 22970, 45940, 91880, 457103, 914206, 1828412, 2285515, 3656824, 4571030, 9142060, 18284120]

約数ペア:

[(1, 18284120), (2, 9142060), (4, 4571030), (5, 3656824), (8, 2285515), (10, 1828412), (20, 914206), (40, 457103), (199, 91880), (398, 45940), (796, 22970), (995, 18376), (1592, 11485), (1990, 9188), (2297, 7960), (3980, 4594)]