朴素的解法
public class Main{
public static void main(String[] args){ Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int a = sc.nextInt();
int count = 0;
int ans = 0;
if(a<6){
count = 0;
System.out.println(count);
continue;
}
for(int j=6;j<=a;j++){
for(int i=1;i<=j/2;i++){
if(j%i==0){
ans+=i;
}
}
if(ans ==j){
//System.out.println(ans);
count++;
}
ans=0;
}
System.out.println(count);
}
}
**}**