The factors of the number 173,000,640 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 307, 320, 480, 587, 614, 921, 960, 1174, 1228, 1535, 1761, 1842, 2348, 2456, 2935, 3070, 3522, 3684, 4605, 4696, 4912, 5870, 6140, 7044, 7368, 8805, 9210, 9392, 9824, 11740, 12280, 14088, 14736, 17610, 18420, 18784, 19648, 23480, 24560, 28176, 29472, 35220, 36840, 37568, 46960, 49120, 56352, 58944, 70440, 73680, 93920, 98240, 112704, 140880, 147360, 180209, 187840, 281760, 294720, 360418, 540627, 563520, 720836, 901045, 1081254, 1441672, 1802090, 2162508, 2703135, 2883344, 3604180, 4325016, 5406270, 5766688, 7208360, 8650032, 10812540, 11533376, 14416720, 17300064, 21625080, 28833440, 34600128, 43250160, 57666880, 86500320, 173000640.
If you add them up, you will get the total of 552,004,992.