Please find below detail regarding your query for the UTP license on fortiOS
Licensing With a multitude of deployment methods supported across various private and public cloud deployments, FortiGate-VM for AWS supports both on-demand (PAYG) and bring-your-own-license (BYOL) licensing models.
On-demand licensing is a highly flexible option for both initial deployments and growing them as needed. With a wide selection of supported instance types, there is a solution for every use case. This license offers FortiOS with a UTP bundle.
BYOL is ideal for migration use cases, where an existing private cloud deployment is migrated to a public cloud deployment. When using an existing license, the only additional cost would be the price for the AWS instances
For fortimanager please find the below detail and the reference link
FortiManager-VM is licensed based on the number of managed devices, amount of logging per day, and storage capacity. Refer to price lists and order SKUs available through your resellers/distributors. These are also referred to as BYOL models. You can deploy FortiManager-VM using different CPU and RAM sizes and launch them on various private and public cloud platforms.
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.