P051.c

Problem Statement

P051.c

Write a program to input two number and check whether they are Amicable Pair or not Example : Sum of Proper Divisors of 220 (1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110) = 284 Sum of Proper Divisors of 284 (1, 2, 4, 71, 142) = 220

Source Code

#include <stdio.h>

int main()
{
    int a, b, i, sa = 0, sb = 0;
    printf("Enter two number : ");
    scanf("%d %d", &a, &b);
    for (i = 1; i <= a / 2; i++)
        if (a % i == 0)
            sa += i;
    for (i = 1; i <= b / 2; i++)
        if (b % i == 0)
            sb += i;
    if (sa == b && sb == a)
        printf("\nInput %d and %d is Amicable Pair.", a, b);
    else
        printf("\nInput %d and %d is Not Amicable Pair.", a, b);
    return 0;
}

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● Author - Amit Dutta · Updated - 12 Dec 2025