How about 10 whose factors are 1 2 5 and 10
The factors of 16 are 1, 2, 4, 8, and 16.
16 has five factors.
16 has five factors.
16
12, 18 and 20 each have six factors.
16 does.
4 and 9
16
16
16
16
5, 10, 15 and 20 have five as a factor. The number 16 has five factors.