#include<bits/stdc++.h>
typedef int64_t i64;
typedef long double f128;
using namespace std;

template<typename T>
void scan(T& n)
{
  cin>>n;
  return;
}

void scan()
{
  return;
}

template<typename T,class... Args>
void scan(T& n,Args&... args)
{
  scan(n);
  scan(args...);
  return;
}

template<typename T>
void scan_array(T start,T end)
{
  T now=start;
  for(;now!=end;++now)
  {
    scan(*now);
  }
  return;
}

template<typename T>
void print(T n)
{
  cout<<n;
  return;
}

template<typename T>
void println(T n)
{
  print(n);
  print('\n');
  return;
}

template<typename T,class... Args>
void println(T n,Args... args)
{
  print(n);
  print(' ');
  println(args...);
  return;
}

template<typename T>
void print_array(T start,T end)
{
  T now=start;
  print(*now);
  ++now;
  for(;now!=end;++now)
  {
    print(' ');
    print(*now);
  }
  print('\n');
  return;
}

vector<int> div_enum(int n)
{
  vector<int> res;
  for(int i=1;i*i<=n;++i)
  {
    if(n%i==0)
    {
      res.push_back(i);
      if(i*i!=n)
      {
        res.push_back(n/i);
      }
    }
  }
  return res;
}

void solve()
{
  int X,Y;
  scan(X,Y);
  if(X>Y)
  {
    swap(X,Y);
  }
  vector<int> vec=div_enum(Y-X);
  int ans=0;
  for(size_t i=0;i<vec.size();++i)
  {
    int A=vec[i]+1,n=(Y-X)/vec[i];
    if((X-n)%(A+1)==0&&X>n)
    {
      ans+=1;
    }
  }
  println(ans);
  return;
}

int main()
{
  int S;
  scan(S);
  for(int i=0;i<S;++i)
  {
    solve();
  }
  return 0;
}