Program28.c

//Write a program to add the factors of the input

#include<stdio.h>
#include<stdbool.h>


int SumFactors(int iNo)
{  
  int iCnt = 0;
  int iSum = 0;

  if(iNo < 0)    //updater
  {
    iNo = -iNo;
  }

  for(iCnt =1; iCnt <= (iNo/2); iCnt++)
  {
     if((iNo % iCnt) == 0)
     {
      iSum = iSum + iCnt;
     }
  }
       return iSum;


}

bool CheckPerfect(int iNumber)
{
  int iResult = 0;
  iResult = SumFactors(iNumber);
  if(iResult == iNumber)
  {
    return true;
  }
  else{
    return false;
  }
}

int main()
{
  int iValue = 0;
  bool bRet = false;

  printf("Enter number: \n");
  scanf("%d",&iValue);

 bRet =  CheckPerfect(iValue);
 if(bRet == true)
 {
  printf("%d is perfect number \n",iValue);
 }
 else{
  printf("%d is not a perfect number",iValue);
 }




return 0;
}