import core.bitop, std.algorithm, std.ascii, std.bigint, std.conv, std.math,
    std.functional, std.numeric, std.range, std.stdio, std.string, std.random,
    std.typecons, std.container, std.format;
static import std.ascii;

// dfmt off
T lread(T = long)(){return readln.chomp.to!T();}
T[] aryread(T = long)(){return readln.split.to!(T[])();}
void scan(TList...)(ref TList Args){auto line = readln.split();
foreach (i, T; TList){T val = line[i].to!(T);Args[i] = val;}}
alias sread = () => readln.chomp();enum MOD = 10 ^^ 9 + 7;
alias PQueue(T, alias less = "a<b") = BinaryHeap!(Array!T, less);
// dfmt on

void main()
{
    long N = lread();
    auto A = aryread();
    auto B = A.map!(x => BigInt(x)).array;
    auto l = B.reduce!lcm();
    long ans;
    foreach (b; B)
    {
        long x = ((l / b) % MOD).to!long;
        ans = (ans + x) % MOD;
    }
    writeln(ans);
}

T lcm(T)(T a, T b)
{
    return (a * b) / mygcd(a, b);
}

T mygcd(T)(T a, T b)
{
    if (a < b)
    {
        T tmp = a;
        a = b;
        b = tmp;
    }
    if (b == 0)
        return a;
    return mygcd(b, a % b);
}
