#include<bits/stdc++.h>
#pragma GCC optimize("O3")

using namespace std;

typedef long long int 	LL;
typedef pair<int,int>   II;
typedef vector< II >      VII;
typedef vector<int>     VI;
typedef vector< LL >     VLL;
typedef vector< VI > 	VVI;

#define PB push_back
#define MP make_pair
#define F first
#define S second
#define SZ(a) (int)(a.size())
#define ALL(a) a.begin(),a.end()
#define SET(a,b) memset(a,b,sizeof(a))
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) FOR(i, 0, n)

#define si(n) scanf("%d",&n)
#define dout(n) printf("%d\n",n)
#define sll(n) scanf("%lld",&n)
#define lldout(n) printf("%lld\n",n)
#define fast_io ios_base::sync_with_stdio(false);cin.tie(NULL)

#define TRACE

#ifdef TRACE
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
	cerr << name << " : " << arg1 << std::endl;
}template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
	const char* comma = strchr(names + 1, ',');cerr.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...);
}
#else
#define trace(...)
#endif

//FILE *fin = freopen("in","r",stdin);
//FILE *fout = freopen("out","w",stdout);
int main(){
    int rim[1000006];
    VI primes;
    REP(i, 1000006)rim[i] = 1;
    rim[1] = 0;
    FOR(i, 2, 1000006){
	if(rim[i]){
	    primes.PB(i);
	    int j;
	    for(j = i*2;j < 1000006;j += i){
		rim[j] = 0;
	    }
	}
    }
    int n;
    si(n);
    LL fans = 0;
    REP(i, n){
	LL x, ans;
	VLL divs;
	sll(x);
	ans = 1;
	for(auto p: primes){
	    while(x%p == 0){
		ans *= p;
		ans++;
		x /= p;
	    }
	}
    if(x != 1){
     ans *= x;
     ans++;
    }
	fans += ans;
    }
    lldout(fans);
    return 0;
}