The number on the cord is a rating and represents the maximum safe voltage for the cord. It's like automobile tires. If you get an HR-rated tire rated 130 mph, you are allowed to drive slower.
That says nothing about the power supply; for that, you have to check the power supply. You did; it appears to be the typical multi-voltage power supply that'll work anywhere from Japan to the UK, with the right cord or adapter.
That cord looks like an "IEC C5" cord, which is readily available (mail order, at least) with any nation's plug on the other end. You can't necessarily expect to walk into any retail store and find it, especially now that Radio Shack is in decline.
I recommend a local cord instead of those hokey-dokey universal adapters from China, which do not have Underwriter's Laboratories or other NRTL ratings, and teardowns have shown are dreadfully unsafe.