How about 10 whose factors are 1 2 5 and 10
6: 1, 2, 3, 6
8: 1, 2, 4, 8
10: 1, 2, 5, 10
14: 1, 2, 7, 14
15: 1, 3, 5, 15
They are 6, 8, 10, 14 and 15.
1, 2, 4, 5, 10, 20
Just 16.
The square numbers between 1 and 20 are 1,4,9 and 16.
The factors of 20 are 1,2,4,5,10 and 20. Two are odd, four are even.
1 and 5 are the only numbers that are factors of 20, 35, and 45.
There are 11 numbers between 1 and 130 that have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121.
They are all positive two-digit whole numbers between 15 and 65. As to factors, only 1.
As factors, 1 and 5
Six numbers. They are 1, 2, 4, 5, 10 and 20.
The prime numbers between 1 and 20 are: 2, 3, 5, 7, 11, 13, 17 and 19. Note that a prime number has only two factors, 1 and itself and one. Number 1 is not considered to be a prime number because it has only one factor.
Sorry. There are no numbers between 1 and 2 that have 5 factors.
The factors of 20 are 1, 2, 4, 5, 10, and 20.