How can I see the id number of one camera in my integration system? I attach an example.

What you show is GUIDs, these could be identifier for anything.

Two recommendations:

Read about the FQID –

https://doc.developer.milestonesys.com/html/index.html?base=miphelp/class_video_o_s_1_1_platform_1_1_f_q_i_d.html&tree=tree_search.html?search=fqid

Explore this sample - Configuration Access via SDK- https://doc.developer.milestonesys.com/html/index.html?base=samples/configaccess_sample.html&tree=tree_2.html