#include #define show(x) cout << #x << " = " << x << endl using namespace std; using ll = long long; using pii = pair; template ostream& operator<<(ostream& os, const vector& v) { os << "sz=" << v.size() << "\n["; for (const auto& p : v) { os << p << ","; } os << "]\n"; return os; } template ostream& operator<<(ostream& os, const pair& p) { os << "(" << p.first << "," << p.second << ")"; return os; } constexpr ll MOD = 1e9 + 7; template constexpr T INF = numeric_limits::max() / 100; int main() { ll n; cin >> n; unordered_set cand; int num = 0; for (auto i = 1; i * i <= n; i++) { if (n % i == 0) { if (i * i == n) { const ll key = i * pow(10, log10(i) + 1) + i; if (cand.find(key) == cand.end()) { cand.insert(key); num++; } } else { const ll key1 = (n / i) * pow(10, (ll)log10(i) + 1) + i; const ll key2 = (i)*pow(10, (ll)log10(n / i) + 1) + (n / i); if (cand.find(key1) == cand.end()) { cand.insert(key1); num++; } if (cand.find(key2) == cand.end()) { cand.insert(key2); num++; } } } } cout << num << endl; return 0; }