Python Day 19 : Interfaces | HackerRank 30 Days of Code Solutions

 Code:

class AdvancedArithmetic(object):

    def divisorSum(n):

        raise NotImplementedError

class Calculator(AdvancedArithmetic):

    def divisorSum(self, n):

        

        x = []

        for i in range(1, n+1):

            if n % i == 0:

              x.append(i)

            else:

              pass

        return sum(x)

n = int(input())

my_calculator = Calculator()

s = my_calculator.divisorSum(n)

print("I implemented: " + type(my_calculator).__bases__[0].__name__)

print(s)