All of the odd numbers in that range can be factors.
Ten odd factors.
The factors of 20 are 1,2,4,5,10 and 20. Two are odd, four are even.
Two of the factors of 40 are odd. The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
Every even number has odd and even factors.
1 and 5
Ten odd factors.
There are no factors of 10 between 20 and 100.
1 and 5 are the factors of 20 which are odd.
The factors of 20 are 1,2,4,5,10 and 20. Two are odd, four are even.
Two of the factors of 40 are odd. The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
1,11,12,13,14,15,16,17,18,19,2,6,7,8,9,3,4,5, those r some of the factors between 10 and 20
21
15
15
15
set of odd numbers divisible by 2 between 10 and 20
Every even number has odd and even factors.