#約数全部
def Divisors(N):
    N=abs(N)
    L,U=[],[]
    k=1
    while k*k <=N:
        if N%k== 0:
            L.append(k)
            if k!=N//k:
                U.append(N//k)
        k+=1
    return L+U[::-1]
#====================================
S=int(input())
L=[0]*S
for i in range(S):
    X,Y=map(int,input().split())
    D=Divisors(X+Y)[1:]

    K=0
    for a in D:
        if a==2:
            K+=(X==Y)
        else:
            p=a-1
            B=(p*X-Y)
            C=(-X+p*Y)
            if B>0 and C>0 and B%(p*p-1)==C%(p*p-1)==0:
                K+=1
    L[i]=K

print("\n".join(map(str,L)))