#include <bits/stdc++.h>

using namespace std;

const long long MODULO = 1e9 + 7;

int N;
int A[1000001];
vector<int> indexes[100001];
vector<int> factors[100001];
long long result = 0;
bitset<1000001> visited;

int M;
vector<int> v;
vector<pair<long long, pair<int, int>>> edges;

namespace DSU
{
    vector<int> dsu, min;

    void init(const int& size)
    {
        dsu.clear(), dsu.resize(size + 1, -1);
        min.clear(), min.resize(size + 1);
        iota(min.begin(), min.end(), 0);
    }

    int find(const int& u)
    {
        return dsu[u] < 0 ? u : dsu[u] = find(dsu[u]);
    }

    bool unite(int u, int v)
    {
        u = find(u), v = find(v);
        if (u == v)
            return false;
        if (dsu[u] < dsu[v])
            swap(u, v);
        dsu[v] += dsu[u];
        dsu[u] = v;
        if (A[min[u]] < A[min[v]])
            min[v] = min[u];
        return true;
    }

    int getComponentMin(const int& u)
    {
        return min[find(u)];
    }
}

void KruskalsAlgorithm()
{
    sort(edges.begin(), edges.end());
    int mstEdgesCount = 0;
    DSU::init(M);
    for (auto &[weight, edge] : edges)
    {
        int i = edge.first, j = edge.second;
        if (DSU::unite(i, j))
        {
            result += weight;
            if (++mstEdgesCount == M - 1) return;
        }
    }
}

int main()
{
    // freopen("inp.txt", "r", stdin);
    // freopen("out.txt", "w", stdout);

    ios::sync_with_stdio(false);

    for (int i = 1; i <= 100000; i++)
        for (int j = i; j <= 100000; j += i)
            factors[j].push_back(i);

    cin >> N;
    for (int i = 1; i <= N; i++)
        cin >> A[i];
    sort(A + 1, A + N + 1);
    for (int i = 1; i <= N; i++)
        indexes[A[i]].push_back(i);

    DSU::init(N);

    for (int i = 1; i <= N; i++)
        for (auto &f : factors[A[i]])
            if (!indexes[f].empty() && indexes[f].front() < i)
            {
                DSU::unite(indexes[f].front(), i);
                result += A[i];
                break;
            }

    for (int i = 1; i <= N; i++)
    {
        int u = DSU::find(i);
        if (visited[u]) continue;
        visited[u] = true;
        v.push_back(A[DSU::getComponentMin(u)]);
    }

    M = (int)v.size();
    for (int i = 0; i < M; i++)
        for (int j = 0; j < i; j++)
            edges.emplace_back(lcm(1ll * v[i], 1ll * v[j]), make_pair(i, j));

    KruskalsAlgorithm();

    cout << result;
}