18670180

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4691}}^1$

素因数の和:4899

約数の個数: 24

約数和(自身を含む): 39412800

約数和(自身を除く): 20742620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4691, 9382, 18764, 23455, 46910, 93820, 933509, 1867018, 3734036, 4667545, 9335090, 18670180]

約数ペア:

[(1, 18670180), (2, 9335090), (4, 4667545), (5, 3734036), (10, 1867018), (20, 933509), (199, 93820), (398, 46910), (796, 23455), (995, 18764), (1990, 9382), (3980, 4691)]