Please use C,C++,Java or Python programming language to design your computer programs.

(20%) In mathematics, a perfect number is a positive integer that is the sum of its proper positive divisors, that is, the sum of the positive divisors excluding the number itself. The first perfect number is 6, because 1, 2, and 3 are its proper positive divisors, and 1 +2+3 6. Equivalently, the number 6 is equal to half the sum of all its positive divisors: (1 +2+3+6)/ 2 6. Piease write a program perfect_number) which can list all the perfect numbers between 1 and k