分别列出500600680的所有公因数

500的公因数有：1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500

600的公因数有：1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 150, 200, 300, 600

680的公因数有：1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680