The calculated distance (air line) between Oktyabr’skoye and Armyansk is approximately 61 miles respectively 98 kilometers.
By car or train, the actual journey to Armyansk is certainly longer, as only the direct route (as the crow flies) between Oktyabr’skoye and Armyansk has been calculated here.
Air line (approximately)
98 kilometers
53 nautical miles