from heapq import heappush as hp, heappop as hpp
def prf(m):
    pf = {}
    for i in range(2, int(m**0.5)+1):
        while m % i == 0:
            pf[i] = pf.get(i, 0)+1
            m //= i
    if m > 1:
        pf[m] = 1
    return pf

def calc(Num, L):
    res = 1
    for n, l in zip(Num, L):
        res *= pow(l, n)
    return res

N, K, M = map(int, input().split())
Pf = prf(N)
if not Pf:
    print(1)
else:
    Pkey, Pval = map(list, zip(*Pf.items()))
    pl = len(Pkey)
    
    cnt = 0
    Q = [(1, tuple(0 for _ in range(pl)))]
    used = set()
    while Q:
        x, pp = Q.pop()
        if x > M or any(a*K < b for a, b in zip(Pval, pp)) or pp in used:
            continue
        used.add(pp)
        cnt += 1
        for i in range(pl):
            lp = list(pp)
            lp[i] += 1
            Q.append((calc(lp, Pkey), tuple(lp)))
    
    print(cnt)