#include <algorithm>
#include <bitset>
#include <cassert>
#include <cctype>
#include <chrono>
#define _USE_MATH_DEFINES
#include <cmath>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
using namespace std;

#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()

const int INF = 0x3f3f3f3f;
const long long LINF = 0x3f3f3f3f3f3f3f3fLL;
const double EPS = 1e-8;
const int MOD = 1000000007;
// const int MOD = 998244353;
const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
// const int dy[] = {1, 1, 0, -1, -1, -1, 0, 1},
//           dx[] = {0, -1, -1, -1, 0, 1, 1, 1};

struct IOSetup {
  IOSetup() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    cout << fixed << setprecision(20);
    cerr << fixed << setprecision(10);
  }
} iosetup;
/*-------------------------------------------------*/
vector<long long> divisor(long long val) {
  vector<long long> res;
  for (long long i = 1; i * i <= val; ++i) {
    if (val % i == 0) {
      res.emplace_back(i);
      if (i * i != val) res.emplace_back(val / i);
    }
  }
  sort(ALL(res));
  return res;
}

int main() {
  int n; cin >> n;
  vector<int> a(n + 1); FOR(i, 1, n + 1) cin >> a[i];
  FOR(i, 1, n + 1) a[i] += a[i - 1];
  vector<long long> ds = divisor(a[n]);
  int ans = 1;
  for (int e : ds) {
    bool ok = true;
    int pos = 0;
    while (pos < n) {
      int nx = lower_bound(a.begin() + pos, a.end(), a[pos] + e) - a.begin();
      // cout << e << ' ' << nx << '\n';
      if (a[nx] - a[pos] != e) {
        ok = false;
        break;
      }
      pos = nx;
    }
    if (ok) ans = max(ans, a[n] / e);
  }
  cout << ans << '\n';
  return 0;
}