Google Map API 任意の倍率で埋め込んだりスクロールを無効化したり

<script src="//maps.google.com/maps/api/js"></script>
<script>
google.maps.event.addDomListener( window, 'load', function(){
  var latlng = new google.maps.LatLng( 36.666666, 139.666666 );
  var myOptions = {
    zoom: 18,
    center: latlng,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    scrollwheel: false,
    draggable: false
  };
  var map = new google.maps.Map(document.getElementById('map'), myOptions);
  var marker = new google.maps.Marker({
    position: latlng,
    map: map,
  });
});
</script>
<div id="map"></div>

#map {
  position: relative;
  height: 0;
  padding-top: 56.25%;
}