import sys
readline=sys.stdin.readline

def Divisors(N):
    divisors=[]
    for i in range(1,N+1):
        if i**2>=N:
            break
        elif N%i==0:
            divisors.append(i)
    if i**2==N:
        divisors+=[i]+[N//i for i in divisors[::-1]]
    else:
        divisors+=[N//i for i in divisors[::-1]]
    return divisors

N=int(readline())
K=int(readline())
ans=0
for ac in Divisors(K):
    bd=K//ac
    ans+=max(0,min(ac-1,2*N+1-ac))*max(0,min(bd-1,2*N+1-bd))
print(ans)