The factors of the number 320,120,000 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 64, 80, 100, 106, 125, 151, 160, 200, 212, 250, 265, 302, 320, 400, 424, 500, 530, 604, 625, 755, 800, 848, 1000, 1060, 1208, 1250, 1325, 1510, 1600, 1696, 2000, 2120, 2416, 2500, 2650, 3020, 3392, 3775, 4000, 4240, 4832, 5000, 5300, 6040, 6625, 7550, 8000, 8003, 8480, 9664, 10000, 10600, 12080, 13250, 15100, 16006, 16960, 18875, 20000, 21200, 24160, 26500, 30200, 32012, 33125, 37750, 40000, 40015, 42400, 48320, 53000, 60400, 64024, 66250, 75500, 80030, 84800, 94375, 106000, 120800, 128048, 132500, 151000, 160060, 188750, 200075, 212000, 241600, 256096, 265000, 302000, 320120, 377500, 400150, 424000, 512192, 530000, 604000, 640240, 755000, 800300, 1000375, 1060000, 1208000, 1280480, 1510000, 1600600, 2000750, 2120000, 2560960, 3020000, 3201200, 4001500, 5001875, 6040000, 6402400, 8003000, 10003750, 12804800, 16006000, 20007500, 32012000, 40015000, 64024000, 80030000, 160060000, 320120000.
If you add them up, you will get the total of 814,126,896.