#include "bits/stdc++.h"

#define REP(i, n ,N) for(ll i = (n); i < (N); i++)
#define p(s) cout<<(s)<<endl
#define p2(a, b) cout<<(a)<<" "<<(b)<<endl
using namespace std;
typedef long long ll;
ll mod = 1e9+7;
ll inf = 1e18;

ll N, K, M;
vector<ll> yakusu(ll n){
	vector<ll> ret;
	for(ll i=1; i*i<=n; i++){
		if(n%i != 0) continue;
		ret.push_back(i);
		if(i*i<n) ret.push_back(n/i);
	}
	sort(ret.begin(), ret.end());
	return ret;
}
int main(){
	cin >> N >> K >> M;
	vector<ll> yaku = yakusu(N);

	set<ll> st;
	for(auto y: yaku){
		if(y<=M) st.insert(y);
	}
	REP(k,1,K){
		set<ll> tmpst = st;
		for(auto num1: tmpst){
			for(auto num2: tmpst) {
				if (num1 * num2 <= M) st.insert(num1 * num2);
			}
		}
		if(tmpst.size() == st.size()) break;
	}
	p(st.size());
	return 0;
}