The Program in  C# Program to Find Perfect Numbers within a given range  is given below:

using System;

namespace PerfectNumbers
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Codeauri Family, enter the starting number of the range:");
            int start = int.Parse(Console.ReadLine());
            Console.WriteLine("Similarly, enter the end number of the range:");
            int end = int.Parse(Console.ReadLine());

            Console.WriteLine("The perfect numbers in the given range are:");
            for (int i = start; i <= end; i++)
            {
                int sum = 0;
                for (int j = 1; j < i; j++)
                {
                    if (i % j == 0)
                    {
                        sum += j;
                    }
                }
                if (sum == i)
                {
                    Console.WriteLine(i);
                }
            }
            Console.ReadLine();
        }
    }
}

Output:

Hello Codeauri Family, enter the starting number of the range:1
Similarly, enter the end number of the range:1000
The perfect numbers in the given range are:
6
28
496

Pro-Tips💡

Here are the step by step execution of above program:

1. The starting and end numbers of the range are taken as input from the user using the Console.ReadLine() method and parsing the input using int.Parse().
2. A for loop is used to iterate over the range of numbers. For each number, a variable sum is initialized to 0.
3. Another for loop is used to find the divisors of each number in the range. If a divisor is found, it’s added to the sum.
4. If the sum of the divisors is equal to the number itself, it’s a perfect number and it’s displayed using Console.WriteLine().
5. The process continues until all the numbers in the range have been checked.
6. Finally, the program waits for user input using Console.ReadLine() before closing.