Help me!

I was working on math task and was not able to solve it :( Please, help me to implement "simple" counter.

function count(s, pairs) {
  return 0; // number
}

As first argument you will take bit mask in string s (can contains only 1 or 0). As second argument you will take array of pairs (array, which contain many arrays with length equal 2). Each pairs[q][0] !== pairs[w][0] and each pairs[h][0] is prime.

Let's define number N

  N = (pairs[0][0] ** pairs[0][1]) *
    (pairs[1][0] ** pairs[1][1]) *
    (pairs[2][0] ** pairs[2][1]) * /*
    ..... */ *
    (pairs[pairs.length - 1][0] ** pairs[pairs.length - 1][1])

Your task is to calculate - how many such integer numbers k exist (0 <= k <= N), which follow next condition: greatest common divisor of (k + j and N) is 1 if s[j] === 1 AND greatest common divisor of (k + j and N) is NOT 1 if s[j] === 0.

Please, return NOT the actual number, but the number which is answer mod 1000000007.

  // ... your solution
  // answer - task solution
  const result = answer % 1000000007;
  return result;