As you may know, the factor of a number is any number that can be divided into a given number that results in a whole number as your remainder.
Factors of 2: There are two factors of two
1, 2
1 x 2 = 2
Factors of 4: There are three factors of four
1, 2, 4
1 x 4 = 4
2 x 2 = 4
Factors of 6: There are four factors of six
1, 2, 3, 6
1 x 6 = 6
2 x 3 = 6
Factors of 8: There are four factors of eight
1, 2, 4, 8
1 x 8 = 8
2 x 4 = 8
I hope this helps!