Python Program to Check a Number is a Perfect Number

Updated: May 27

A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3, and 1 + 2 + 3 = 6, so 6 is a perfect number. other example are 28, 496, and 8,128.


n =int(input("Enter any number: ")) sum=0 for i in range(1, n): if(n % i == 0): sum = sum + i if (sum == n): print("The number is a Perfect number!") else: print("The number is not a Perfect number!")


Enter any number: 6 The number is a Perfect number!

To Check a Number is a Perfect Number or Not by Rajesh Sir:

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Python Program to Find Sum of Series 1²+2²+3²+….+n²

The mathematical formula to find the sum of 1²+2²+3²+….+n² is n(n+1)(2n+1)/6 So to find the sum of series we use this formula. Program: n = int(input("Enter Positive Number : ")) sum = 0 sum= (n*(n+