// #define DEBUGGING
#include <bits/stdc++.h>
#define endl '\n'
#define ALL(V) (V).begin(), (V).end()
#define ALLR(V) (V).rbegin(), (V).rend()
template <typename T> using V = std::vector<T>;
template <typename T> using VV = V<V<T>>;
using ll = std::int64_t;
using ull = std::uint64_t;
using PLL = std::pair<ll, ll>;
using TLL = std::tuple<ll, ll, ll>;
template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T> const T& clamp(const T &t, const T &low, const T &high) { return std::max(low, std::min(high, t)); }
template <typename T> void chclamp(T &t, const T &low, const T &high) { return t = clamp(t, low, high); }
namespace init__ { struct InitIO { InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(30); } } init_io; }
#define mv_rec make_v(init, tail...)
template <typename T> T make_v(T init) { return init; }
template <typename T, typename... Tail> auto make_v(T init, size_t s, Tail... tail) { return V<decltype(mv_rec)>(s, mv_rec); }
#undef mv_rec
using namespace std;
#ifdef DEBUGGING
#include "../../debug/debug.cpp"
#else
#define DEBUG(...) 0
#define DEBUG_SEPARATOR_LINE 0
#endif

using BS = bitset<64>;
using Matrix = V<BS>;

tuple<Matrix, ll> gauss_elim(Matrix mat) {
    ll fcnt = 0;
    ll upper_row = 0;
    for(ll col = 0; col < 64; col++) {
        ll row = -1;
        for(ll r = upper_row; r < mat.size(); r++) {
            if(mat[r].test(col)) {
                row = r;
                break;
            }
        }
        if(row == -1) {
            fcnt++;
            continue;
        }
        swap(mat[upper_row], mat[row]);
        for(ll r = 0; r < mat.size(); r++) {
            if(r == upper_row) continue;
            if(!mat[r].test(col)) continue;
            mat[r] ^= mat[upper_row];
        }
        upper_row++;
    }
    return make_tuple(mat, fcnt);
}

const ll inf = 5e15;

int main() {
    ll N;
    cin >> N;
    V<ll> A(N);
    for(auto &&ele : A) cin >> ele;
    Matrix mat;

    for(ll i = 0; i < N; i++) {
        ll cur = A[i];
        for(ll k = 0; k < 32; k++) {
            mat.push_back(BS(cur));
            cur *= 2;
        }
    }

    Matrix ret;
    ll fcnt;
    tie(ret, fcnt) = gauss_elim(mat);
    ll rank = ret.size() - fcnt;
    while(rank < ret.size()) ret.pop_back();

    V<ll> sum_v(1e5 + 10);
    ll sum = 0;
    for(ll e : A) {
        sum += e;
        sum_v[e]++;
    }

    ll idx[64];
    fill(idx, idx + 64, inf);

    for(ll i = 0; i < ret.size(); i++) {
        for(ll j = 0; j < 64; j++) {
            if(!ret[i].test(j)) continue;
            chmin(idx[j], i);
            break;
        }
    }

    ll ans = inf;
    for(ll j = 1; j <= 1e5 + 10; j++) {
        {
            BS bs(j);
            for(ll k = 0; k < 32; k++) {
                if(!bs.test(k)) continue;
                if(idx[k] == inf) continue;
                bs ^= ret[idx[k]];
            }
            if(bs.any()) continue;
        }
        ll tmp = sum;
        for(ll k = 1; j * k < sum_v.size(); k++) tmp -= sum_v[j * k] * (j * k - k);
        chmin(ans, tmp);
    }

    cout << ans << endl;
    return 0;
}