18319940

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4603}}^1$

素因数の和:4811

約数の個数: 24

約数和(自身を含む): 38673600

約数和(自身を除く): 20353660

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4603, 9206, 18412, 23015, 46030, 92060, 915997, 1831994, 3663988, 4579985, 9159970, 18319940]

約数ペア:

[(1, 18319940), (2, 9159970), (4, 4579985), (5, 3663988), (10, 1831994), (20, 915997), (199, 92060), (398, 46030), (796, 23015), (995, 18412), (1990, 9206), (3980, 4603)]