# X=A*B+C
# Y=A*C+B
# X+Y=(A+1)(B+C)

S=int(input())
for _ in range(S):
    X,Y=map(int,input().split())
    ans=0
    if X==Y:
        ans=X-1
    d=1
    while d*d<=X+Y:
        if (X+Y)%d!=0:
            d+=1
            continue
        divs=[d]
        if (X+Y)//d!=d:
            divs.append((X+Y)//d)
        for div in divs:
            if div<=2:
                continue
            A=div-1
            # B+C=bc
            # X=AB+C
            # X=AB+bc-B
            # B=(X-bc)//(A-1)
            bc=(X+Y)//div
            B=(X-bc)//(A-1)
            C=bc-B
            if X!=A*B+C or Y!=A*C+B or A<=0 or B<=0 or C<=0:
                continue
            ans+=1
        d+=1
    print(ans)