An information processing apparatus sequentially receives a first object list corresponding to a first prefix from each of a plurality of storage nodes, removes, in a case where a processed storage node exists, a second prefix held by the processed storage node from the first object list received from a storage node being processed, receives a second object list including objects of which the number is decreased by removal of the second prefix from the storage node being processed, and transmits, to a user terminal, an object list obtained by adding the second object list to the first object list from which the second prefix is removed.