What is an abundant number?
If the sum of all divisors(excluding the number itself) of a number is greater than the number itself, then that number is called abundant number.
1, 2, 3, 4, 6 are the divisors of 12.
1 + 2 + 3 + 4 + 6 = 16. (sum of divisors)
16 > 12. So, 12 is an abundant number.
Write a C program to print the abundant numbers from 1 to N.
If the sum of all divisors(excluding the number itself) of a number is greater than the number itself, then that number is called abundant number.
1, 2, 3, 4, 6 are the divisors of 12.
1 + 2 + 3 + 4 + 6 = 16. (sum of divisors)
16 > 12. So, 12 is an abundant number.
Write a C program to print the abundant numbers from 1 to N.
int main () {
int n, i, j, sum = 0;
/* get the input from the user */
printf("Enter your input:");
scanf("%d", &n);
/* print abundant no from 1 to n */
for (i = 1; i <= n; i++) {
for (j = 1; j <= i/2; j++) {
if (i % j == 0) {
sum = sum + j;
}
}
/* print abundant number alone */
if (sum > i)
printf("%d ", i);
sum = 0;
}
printf("\n");
return 0;
}
Output:
jp@jp-VirtualBox:~/$ ./a.out
Enter your input:100
12 18 20 24 30 36 40 42 48 54 56 60 66 70 72 78 80 84 88 90 96 100
Enter your input:100
12 18 20 24 30 36 40 42 48 54 56 60 66 70 72 78 80 84 88 90 96 100
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