#pragma GCC target("avx2,bmi,bmi2")
#pragma GCC optimize("O3")

#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>

uint32_t gcd(uint32_t x, uint32_t y) {
  if (x == 0 || y == 0) {
    return x | y;
  }
  int x_tz = __builtin_ctz(x);
  int y_tz = __builtin_ctz(y);
  int k = x_tz < y_tz ? x_tz : y_tz;
  x >>= x_tz;
  y >>= y_tz;
  while (x != y) {
    if (x < y) {
      uint32_t t = x;
      x = y;
      y = t;
    }
    x -= y;
    x >>= __builtin_ctz(x);
  }
  return x << k;
}

int main(void) {
  size_t n;
  scanf("%zu", &n);
  uint32_t a[100];
  for (size_t i = 0; i < n; ++i) {
    scanf("%" SCNu32, &a[i]);
  }
  uint32_t cnt = 0;
  for (size_t i = 0; i < n; ++i) {
    for (size_t j = i + 1; j < n; ++j) {
      uint32_t d = gcd(a[i], a[j]);
      for (size_t k = j + 1; k < n; ++k) {
        if (gcd(d, a[k]) == 1) {
          ++cnt;
        }
      }
    }
  }
  printf("%" PRIu32 "\n", cnt);
}