6821720

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{857}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 15444000

約数和(自身を除く): 8622280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 857, 995, 1592, 1714, 1990, 3428, 3980, 4285, 6856, 7960, 8570, 17140, 34280, 170543, 341086, 682172, 852715, 1364344, 1705430, 3410860, 6821720]

約数ペア:

[(1, 6821720), (2, 3410860), (4, 1705430), (5, 1364344), (8, 852715), (10, 682172), (20, 341086), (40, 170543), (199, 34280), (398, 17140), (796, 8570), (857, 7960), (995, 6856), (1592, 4285), (1714, 3980), (1990, 3428)]