#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int,int > pii; template<typename T> using V = vector<T>; #define SYNC ios_base::sync_with_stdio(0);cin.tie(0); #define rep(i,b) for(int i=0;i<b;i++) #define repn(i,n) for(int i=1;i<=n;i++) #define ALL(x) (x).begin(),(x).end() #define fi first #define se second #define pb push_back #define dzx cerr<<"here"; const ll MOD=1e9+7,INF=0x3F3F3F3F3F3F3F3F; const int inf=0x3F3F3F3F; /* Equinox */ ll ans=0; ll solve(ll x){ ll r=1; for(ll i=2;i*i <= x;i++){ while((x%i)==0){ r*=i; r+=1; x/=i; } } if(x>1){ r*=x; r+=1; } return r; } int32_t main(){SYNC int n; cin>>n; ll a; while(n--){ cin>>a; ans+=solve(a); } cout<<ans; return 0; }