// 1.cpp : Defines the entry point for the console application.
//

#include <map>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <set>
#include <cstdlib>
#include <cstdio>
#include <stack>
#include <string>
#include <cctype>
typedef long long ll;
typedef long double ld;
using namespace std;
int main()
{
    ifstream fin("sqr-equations.in");
    ofstream fout("sqr-equations.out");
    fin.sync_with_stdio(false);
    fout.sync_with_stdio(false);
    ll A;
    fin >> A;
    A += 1;
    set<pair<ll, ll>> sett;
    if (A == 0){
        fout << "infinity";
        fin.close();
        fout.close();
        return 0;
    }
    if (A > 0){
        for (ll i = 1; i <= (ll)sqrt(abs(A)); i++){
            if (A%i == 0){
                sett.insert({ i + 1, A / i + 1 });
                sett.insert({ -A / i + 1, -i + 1 });
            }
        }
        fout << sett.size();
    }
    else{
        for (ll i = -1; i >= (ll)-sqrt(abs(A)); i--){
            if (A%i == 0){
                sett.insert({ i + 1, A / i + 1 });
                sett.insert({ -A/i + 1, -i + 1 });
                //cout << i << ' ' << A / i << endl;
            }
        }
        fout << sett.size();
    }

    fin.close();
    fout.close();
    return 0;
}