#include<bits/stdc++.h>
#ifdef xay5421
#define D(...) fprintf(stderr,__VA_ARGS__)
#define DD(...) D(#__VA_ARGS__ "="),debug_helper::debug(__VA_ARGS__),D("\n")
#include"/home/xay5421/debug.hpp"
#else
#define D(...) ((void)0)
#define DD(...) ((void)0)
#endif
#define pb push_back
#define eb emplace_back
#define SZ(x) ((int)(x).size())
#define each(x,v) for(auto&x:v)
#define rep(i,a,b) for(int i=(a);i<=(b);++i)
#define per(i,a,b) for(int i=(a);i>=(b);--i)
template<class T>void rd(T&x){int f=0,c;while(!isdigit(c=getchar()))f^=!(c^45);x=(c&15);while(isdigit(c=getchar()))x=x*10+(c&15);if(f)x=-x;}
template<class T>void pt(T x,int c=-1){if(x<0)putchar('-'),x=-x;if(x>9)pt(x/10);putchar(x%10+48);if(c!=-1)putchar(c);}
using namespace std;
using LL=long long;
using ULL=unsigned long long;
const int N=200005;
int n,L[N];
LL a[N],dp[N];
int main(){
#ifdef xay5421
	freopen("a.in","r",stdin);
#endif
	rd(n);
	rep(i,1,n)rd(a[i]);
	sort(a+1,a+n+1);
	memset(dp,63,sizeof(dp));
	dp[1]=0;
	int pos=1;
	rep(i,2,n){
		while(a[i]/a[i-1]<a[i]/a[pos])++pos;
		L[i]=pos;
	}
	rep(i,2,n){
		dp[i]=min(dp[i],dp[i-1]+(a[i]/a[i-1]));
		dp[i]=min(dp[i],dp[L[i]]+(a[i]/a[L[i]]));
		if(L[i]>1){
			int j=L[i]-1;
			per(k,20,0)if(j-(1<<k)>=1){
				if(a[i]/a[j-(1<<k)]==a[i]/a[j])j-=1<<k;
			}
			dp[i]=min(dp[i],dp[j]+(a[i]/a[j]));
		}
	}
	printf("%lld\n",dp[n]);
	return 0;
}