var mymap = L.map("hogemap").setView([38.884202,139.811540], 16);
L.tileLayer('https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png', {
 attribution:
    '<a href="http://maps.gsi.go.jp/development/ichiran.html">国土地理院</a>'
}).addTo(mymap);