With the curve secp256k1, the order of the twist is 3×197×1559×96769×146849×2587814237219×375925338294461779×101009178936527559588563023359
But I can't understand what is formula of this twist(twist is not standart).
Article were "formulated" this twist - https://www.di.ens.fr/~fouque/pub/fdtc08.pdf