delete pics to save space

2.10791.cpp

@@ -0,0 +1,43 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+int dva(int &n,int d)
+{
+	int x=1;
+	while(n%d==0)
+	{
+		n/=d;
+		x*=d;
+	}
+	return x;
+}
+long long solve(int n)
+{
+	if(n==1) return 2;
+	int m=int(sqrt(n)+0.5);
+	long long ans=0;
+	int cnt=0;
+	for(int i=2;i<m;i++)
+		if(n%i==0)
+		{
+			cnt++;
+			ans+=dva(n,i);
+		}
+	if(n>1)
+	{
+		cnt++;
+		ans+=n;
+	}
+	if(cnt<=1) ans++;
+	return ans;
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	int n,kase=0;
+	while(cin>>n&&n)
+		cout<<"Case "<<++kase<<": "<<solve(n)<<"\n";
+	return 0;
+}