import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    static int m;
    static int[] values;
    static int[] counts;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int k = Math.min(sc.nextInt(), 30);
        m = sc.nextInt();
        HashMap<Integer, Integer> map = new HashMap<>();
        for (int i = 2; i <= Math.sqrt(n); i++) {
            while (n % i == 0) {
                map.put(i, map.getOrDefault(i, 0) + 1);
                n /= i;
            }
        }
        if (n > 1) {
            map.put(n, map.getOrDefault(n, 0) + 1);
        }
        int idx = 0;
        values = new int[map.size()];
        counts = new int[map.size()];
        for (int x : map.keySet()) {
            values[idx] = x;
            counts[idx] = Math.min(30, map.get(x) * k);
            idx++;
        }
        System.out.println(dfw(idx - 1, 1));
    }
    
    static int dfw(int idx, long v) {
        if (idx < 0) {
            return 1;
        }
        long current = v;
        int ans = 0;
        for (int i = 0; i <= counts[idx] && current <= m; i++) {
            ans += dfw(idx - 1, current);
            current *= values[idx];
        }
        return ans;
    }
    
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}