Random Perfect Numbers in Scala

//Q.3 Write a program to read five random numbers and check that random numbers are perfect
// number or not.

object Perfect
{
def main(args : Array[String])
{
var r=scala.util.Random;
var sum =0;
for(i <- 1 to 5)
{
var n = r.nextInt(50)
for(j <- 1 to n-1)
{
if(n % j == 0)
{
sum += j
}
}
if(sum == n)
println(n + " is a perfect number")
else
println(n + " is not a perfect number")
}
}
}