from itertools import product
N,K,M = map(int,input().split())
C = {}
x = N
for i in range(2,N):
    if i*i>N:break
    if x%i==0:
        C[i] = 0
        while x%i==0:
            C[i] += 1
            x = x//i
        if x==1:break
if x>1:
    C[x] = 1
D = {p:[] for p in C}
for p in C:
    for k in range(C[p]*K+1):
        if pow(p,k)>M:break
        D[p].append(pow(p,k))
A = []
for p in D:
    A.append(list(range(len(D[p]))))
B = list(D.keys())
ans = 0
for z in product(*A):
    cnt = 1
    for i in range(len(z)):
        cnt *= D[B[i]][z[i]]
    if cnt<=M:
        ans += 1
print(ans)