#include using namespace std; //#pragma GCC optimize("O3") #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[9]={1,0,-1,0,1,1,-1,-1,0}; const ll dx[9]={0,1,0,-1,1,-1,1,-1,0}; template inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } const int mod = MOD9; const int max_n = 200005; struct mint { ll x; // typedef long long ll; mint(ll x=0):x((x%mod+mod)%mod){} mint operator-() const { return mint(-x);} mint& operator+=(const mint a) { if ((x += a.x) >= mod) x -= mod; return *this; } mint& operator-=(const mint a) { if ((x += mod-a.x) >= mod) x -= mod; return *this; } mint& operator*=(const mint a) { (x *= a.x) %= mod; return *this;} mint operator+(const mint a) const { return mint(*this) += a;} mint operator-(const mint a) const { return mint(*this) -= a;} mint operator*(const mint a) const { return mint(*this) *= a;} mint pow(ll t) const { if (!t) return 1; mint a = pow(t>>1); a *= a; if (t&1) a *= *this; return a; } bool operator==(const mint &p) const { return x == p.x; } bool operator!=(const mint &p) const { return x != p.x; } // for prime mod mint inv() const { return pow(mod-2);} mint& operator/=(const mint a) { return *this *= a.inv();} mint operator/(const mint a) const { return mint(*this) /= a;} }; istream& operator>>(istream& is, mint& a) { return is >> a.x;} ostream& operator<<(ostream& os, const mint& a) { return os << a.x;} using vm=vector; using vvm=vector; struct combination { vector fact, ifact; combination(int n):fact(n+1),ifact(n+1) { assert(n < mod); fact[0] = 1; for (int i = 1; i <= n; ++i) fact[i] = fact[i-1]*i; ifact[n] = fact[n].inv(); for (int i = n; i >= 1; --i) ifact[i-1] = ifact[i]*i; } mint operator()(int n, int k) { if (k < 0 || k > n) return 0; return fact[n]*ifact[k]*ifact[n-k]; } }comb(max_n); struct osak{ vector lpf;// least prime factor vector prime;// prime table osak(long long n){//linear_sieve lpf=vector(n+1,-1); for (int d = 2; d <= n; ++d) { if(lpf[d]==-1){ lpf[d]=d;prime.emplace_back(d); } for(auto p:prime){ if(p*d>n||p>lpf[d])break; lpf[p*d]=p; } } } map factor(int n) { map factor; while (n > 1) { factor[lpf[n]]++; n /= lpf[n]; } return factor; } vector divisor(int N){//O(div.size()) map facs=factor(N); vector ret={1}; for(auto p:facs){ ll range=ret.size(); ll now=1; for(int i=0;i> n; vm v(1000010); vm cov(1000010); osak os(1000010); rep(i,n){ ll a;cin >> a; vl f;for(auto x:os.factor(a))f.emplace_back(x.first); ll c=f.size(); mint plus=1; repl(bit,1,1<>i&1)p*=f[i]; } if(__builtin_popcount(bit)&1)plus+=cov[p]; else plus-=cov[p]; } repl(bit,1,1<>i&1)p*=f[i]; } cov[p]+=plus; } v[a]+=plus; } //rep(i,10)cout << cov[i] <<" ";cout << endl; //rep(i,11)cout << v[i] <<" ";cout << endl; mint ans=0; for(auto p:v)ans+=p; cout << ans << endl; }