#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)

    K=0
    for d in D:
        if d==1:
            continue
        elif d==2:
            if X==Y:
                K+=X-1
        else:
            A=d-1
            B2=A*X-Y
            C2=-X+A*Y

            if B2>0 and C2>0 and B2%(A*A-1)==C2%(A*A-1)==0:
                K+=1
    L[i]=K

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