There is no way to determine the amount of perfect numbers there are. The number could be infinite, but this has yet to be proven. It has also yet to be proven if there are any odd perfect numbers.
There are 31 perfect square numbers between 1 and 1000 (including 1).
6 and 28 are perfect numbers.
The only perfect number between 20 and 50 is 28.
Infinitely many. There are a 100 perfect squares.
81. They are the perfect squares of numbers starting from 5.81. They are the perfect squares of numbers starting from 5.81. They are the perfect squares of numbers starting from 5.81. They are the perfect squares of numbers starting from 5.
There are infinitely many perfect numbers so they cannot all be listed.
There are two perfect numbers, 6 and 28, that are less than 100.
Three numbers.
25
101
There are 31 perfect square numbers between 1 and 1000 (including 1).
Two. 36, and 49 are perfect squares.
6 and 28 are perfect numbers.
there are no perfect numbers instead there are perfect cubes, perfect squares, natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. If you want natural no. they are 21, 22, 23, 24, 25, 26, 27, 28, and 29.
4
The only perfect number between 20 and 50 is 28.
There are 17 such numbers.