Abundant Number is a number whose sum of proper factors is greater than the number itself.
Example 1: 18. Sum of proper factors = 1+2+3+6+9 = 21>18. Hence it is an Abundant Number.
Example 2: 14. Sum of proper factors = 1+2+7 = 10<12. Hence it is not an Abundant Number.
C
#include <stdio.h>
int main()
{
int n=0,sum=0;
printf("Enter a number: ");
scanf("%d",&n);
for(int i=1;i<n;i++)
{
if(n%i==0)
{
sum=sum+i;
}
}
if(n<sum)
{
printf("%d is an Abundant Number",n);
}
else
{
printf("%d is not an Abundant Number",n);
}
return 0;
}C