#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define all(v) v.begin(), v.end()
vector<int> mp((int)1e6);
void solve() {
int n, k; cin >> n >> k;
int sum = 0;
set<int> st;
for(int i = 1; i <= n; i++) {
int x; cin >> x;
st.insert(x), mp[x]++;
}
for(auto &x : st) {
int g = 0;
int j = 1;
while(j <= k) {
int h = x / j;
if(!h)break;
int l = min((int)x / h, k);
g += min((int)1e8, h * (x + 2)) * (l - j + 1);
j = l + 1;
}
sum += g * mp[x];
}
cout << sum << '\n';
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int T = 1;
//cin >> T;
while (T--) solve();
}
