Jejeje facil...
81 = {3, 9, 27, 81}(4 divisores)
123 = {3, 41, 123}(3 divisores)
125 = {5, 25, 125}(3 divisores)
312 = {2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312}
1000 = {2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000}(15 divisores)
Listo, espero que te sirva... :D
