N = int(input())
K = int(input())
#約数列挙
#(a+c)(b+d) = K 
#1<=a,b,c,d <= N
def make_divisors(n):
    lo,hi = [],[]
    i = 1
    while i*i <= n:
        if n%i == 0:
            lo.append(i)
            if i != n // i:
                hi.append(n//i)
        i += 1
    return lo + hi[::-1]
X = make_divisors(K)
ans = 0
#print(X)
now = []
for i in range(len(X)):
  if X[i] > 2 * N:
    break
  else:
    if X[i] == 1:
      continue
    Y = K//X[i]
    if Y > 2 * N:
        continue
    A = 0
    B = 0
    #print(X[i],Y)
    if 2 <= X[i] <= N+1:
        A = X[i]-1
    elif N+2 <= X[i] <= 2*N:
        S =   X[i] - (N+1)
        #A = (X[i]-1-S*2)
        A = (X[i]-1-(S*2))
    if 2 <= Y <= N+1:
        B = Y - 1
    elif N+2 <= Y <= 2*N:
        T =  Y - (N+1)
        B = (Y - 1 - (T*2))
    #print(A*B)
    ans += (A * B)
    #print("P",X[i],ans)
print(ans)