An information processing system including at least one information processing apparatus, the information processing system comprising: a first authentication function unit that issues first authentication information which is necessary to perform an authentication collaboration function between the information processing system and an external service provided outside the information processing system and indicates that an authentication is completed by a first authentication function; an administration unit that issues second authentication information different to the first authentication information, which is necessary to use an internal service provided inside the information processing system and indicates that the authentication is completed by a second authentication function and performs, when a collaboration authentication request using the second authentication information is received from an external apparatus and if the received second authentication information is authorized, the collaboration authentication request for the first authentication function and sends the collaboration authentication response from the first authentication function to the external apparatus; and an authentication function using unit that acquires the first authentication information by performing the authentication using the first authentication function based on the collaboration authentication request for first authentication function requested from the administration unit and sends the collaboration authentication response received from the first authentication function by requesting the collaboration authentication request to the first authentication function unit using the first authentication information; wherein the authentication function using unit deletes the first authentication information after performing the collaboration authentication request to the first authentication function unit using the first authentication information and receiving the collaboration authentication response from the first authentication function; wherein the administration unit stores information related to the second authentication information in a memory unit when the second authentication function issues the second authentication information and determines whether the second authentication information is authorized using the information related to the second authentication information stored in the memory unit; and wherein the information related to the second authentication information used to determine whether the second authentication information is authorized is at least one of an issue data or an upper limit value. a first authentication function unit that issues first authentication information which is necessary to perform an authentication collaboration function between the information processing system and an external service provided outside the information processing system and indicates that an authentication is completed by a first authentication function; an administration unit that issues second authentication information different to the first authentication information, which is necessary to use an internal service provided inside the information processing system and indicates that the authentication is completed by a second authentication function and performs, when a collaboration authentication request using the second authentication information is received from an external apparatus and if the received second authentication information is authorized, the collaboration authentication request for the first authentication function and sends the collaboration authentication response from the first authentication function to the external apparatus; and an authentication function using unit that acquires the first authentication information by performing the authentication using the first authentication function based on the collaboration authentication request for first authentication function requested from the administration unit and sends the collaboration authentication response received from the first authentication function by requesting the collaboration authentication request to the first authentication function unit using the first authentication information; wherein the authentication function using unit deletes the first authentication information after performing the collaboration authentication request to the first authentication function unit using the first authentication information and receiving the collaboration authentication response from the first authentication function; wherein the administration unit stores information related to the second authentication information in a memory unit when the second authentication function issues the second authentication information and determines whether the second authentication information is authorized using the information related to the second authentication information stored in the memory unit; wherein the administration unit stores information related to the second authentication information in a memory unit when the second authentication function issues the second authentication information and determines whether the second authentication information is authorized using the information related to the second authentication information stored in the memory unit; and wherein the information related to the second authentication information used to determine whether the second authentication information is authorized is at least one of an issue data or an upper limit value.