/*
このコード、と～おれ!
Be accepted!
∧＿∧　
（｡･ω･｡)つ━☆・*。
⊂　　 ノ 　　　・゜+.
　しーＪ　　　°。+ *´¨)
 　　　　　　　　　.· ´¸.·*´¨) ¸.·*¨)
		  　　　　　　　　　　(¸.·´ (¸.·'* ☆
*/

#include <cstdio>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstring>
#include <vector>
#include <numeric>
#include <iostream>
#include <random>
#include <map>
#include <unordered_map>
#include <queue>
#include <regex>
#include <functional>
#include <complex>
#include <list>
#include <cassert>
#include <iomanip>
#include <set>
#include <stack>
#include <bitset>
#include <array>
#include <chrono>

//#pragma GCC target("arch=skylake-avx512")
#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse4")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define repeat(i, n, m) for(int i = n; i < (m); ++i)
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define printynl(a) printf(a ? "yes\n" : "no\n")
#define printyn(a) printf(a ? "Yes\n" : "No\n")
#define printYN(a) printf(a ? "YES\n" : "NO\n")
#define printim(a) printf(a ? "possible\n" : "imposible\n")
#define printdb(a) printf("%.50lf\n", a)
#define printLdb(a) printf("%.50Lf\n", a)
#define printdbd(a) printf("%.16lf\n", a)
#define prints(s) printf("%s\n", s.c_str())
#define all(x) (x).begin(), (x).end()
#define deg_to_rad(deg) (((deg)/360.0L)*2.0L*PI)
#define rad_to_deg(rad) (((rad)/2.0L/PI)*360.0L)
#define Please return
#define AC 0
#define manhattan_dist(a, b, c, d) (abs(a - c) + abs(b - d))

using ll = long long;
using ull = unsigned long long;

constexpr int INF = 1073741823;
constexpr int MINF = -1073741823;
constexpr ll LINF = ll(4661686018427387903);
constexpr ll MOD = 1e9 + 7;
constexpr ll mod = 998244353;
constexpr long double eps = 1e-6;
const long double PI = acosl(-1.0L);

using namespace std;

void scans(string& str) {
	char c;
	str = "";
	scanf("%c", &c);
	if (c == '\n')scanf("%c", &c);
	while (c != '\n' && c != -1 && c != ' ') {
		str += c;
		scanf("%c", &c);
	}
}

void scanc(char& str) {
	char c;
	scanf("%c", &c);
	if (c == -1)return;
	while (c == '\n') {
		scanf("%c", &c);
	}
	str = c;
}

double acot(double x) {
	return PI / 2 - atan(x);
}

ll LSB(ll n) { return (n & (-n)); }

template<typename T>
inline T chmin(T& a, const T& b) {
	if (a > b)a = b;
	return a;
}

template<typename T>
inline T chmax(T& a, const T& b) {
	if (a < b)a = b;
	return a;
}

//cpp_int
#if __has_include(<boost/multiprecision/cpp_int.hpp>)
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using namespace boost::multiprecision;
#else
using cpp_int = ll;
#endif

//atcoder library
#if __has_include(<atcoder/all>)
#include <atcoder/all>
//using namespace atcoder;
#endif

/*
	random_device seed_gen;
	mt19937 engine(seed_gen());
	uniform_int_distribution dist(1, 100);
*/


/*----------------------------------------------------------------------------------*/

const int MAX = 1000100;
bool IsPrime[MAX];
int MinFactor[MAX];
vector<int> preprocess(int n = MAX) {
	vector<int> res;
	for (int i = 0; i < n; ++i) IsPrime[i] = true, MinFactor[i] = -1;
	IsPrime[0] = false; IsPrime[1] = false;
	MinFactor[0] = 0; MinFactor[1] = 1;
	for (int i = 2; i < n; ++i) {
		if (IsPrime[i]) {
			MinFactor[i] = i;
			res.push_back(i);
			for (int j = i * 2; j < n; j += i) {
				IsPrime[j] = false;
				if (MinFactor[j] == -1) MinFactor[j] = i;
			}
		}
	}
	return res;
}

vector<pair<int, int> > prime_factor(int n) {
	vector<pair<int, int> > res;
	while (n != 1) {
		int prime = MinFactor[n];
		int exp = 0;
		while (MinFactor[n] == prime) {
			++exp;
			n /= prime;
		}
		res.push_back(make_pair(prime, exp));
	}
	return res;
}

int main() {

	preprocess();
	random_device seed_gen;
	mt19937 engine(seed_gen());
	uniform_int_distribution dist(1ll, (ll)1e18);
	int n;
	scanf("%d", &n);
	vector<int> a(n);
	rep(i, n)scanf("%d", &a[i]);
	vector<ll> b(n), c(n + 1);
	map<int, ll> mp;
	rep(i, n) {
		auto c = prime_factor(a[i]);
		for (auto& [p, q] : c) {
			if (q % 2) {
				if (not mp[p]) {
					mp[p] = dist(engine);
				}
				b[i] ^= mp[p];
			}
		}
	}
	rep(i, n) {
		c[i + 1] = c[i] xor b[i];
	}
	map<ll, ll> mp2;
	rep(i, n + 1) {
		++mp2[c[i]];
	}
	ll ans = 0;
	for (const auto& [p, q] : mp2)ans += q * (q - 1) / 2;
	printf("%lld\n", ans);

	Please AC;
}