import sys
sys.setrecursionlimit(10 ** 6)
INF = float('inf')
MOD = 10**9 + 7
def solve():
    def II(): return int(sys.stdin.readline())
    def LI(): return list(map(int, sys.stdin.readline().split()))
    def LC(): return list(input())
    def IC(): return [int(c) for c in input()]
    def MI(): return map(int, sys.stdin.readline().split())
    N= II()
    K = II()
    def make_divisors(n):
        lower_divisors, upper_divisors = [], []
        i = 1
        while i * i <= n:
            if n % i == 0:
                lower_divisors.append(i)
                if i != n // i:
                    upper_divisors.append(n // i)
            i += 1
        return lower_divisors + upper_divisors[::-1]
    Div = make_divisors(K)
    Dl = len(Div)
    from math import ceil
    Ans = 0
    for n in range(Dl):
        Divmin = Div[n]
        Divmax = Div[Dl-n-1]
        #print(Divmin,Divmax)
        #print(min(Divmin-1,2*N-Divmin+1),min(Divmax-1,2*N-Divmax+1))
        Ans += max(min(Divmin-1,2*N-Divmin+1) * min(Divmax-1,2*N-Divmax+1),0)
        #print(Ans)
    print(Ans)
    return
solve()