Question

How to sum the proper divisors of a number in Scala

Answer 1

object Main {
  def sumNumberProperDivisors(num: Int): Int = {
    var sum = 0

    for (i <- 1 to num / 2) {
      if (num % i == 0) {
        print(s"$i, ")
        sum += i
      }
    }

    sum
  }

  def main(args: Array[String]): Unit = {
    val sum = sumNumberProperDivisors(220)
    
    println(s"\n$sum")
  }
}

 
 
/*
run:
  
1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 
284
  
*/

 

 

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