The factors of the number 257,514,400 are: 1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 32, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 130, 143, 160, 176, 200, 208, 220, 260, 275, 286, 325, 352, 400, 416, 440, 520, 550, 572, 650, 715, 800, 880, 1040, 1100, 1144, 1300, 1430, 1760, 2080, 2200, 2251, 2288, 2600, 2860, 3575, 4400, 4502, 4576, 5200, 5720, 7150, 8800, 9004, 10400, 11255, 11440, 14300, 18008, 22510, 22880, 24761, 28600, 29263, 36016, 45020, 49522, 56275, 57200, 58526, 72032, 90040, 99044, 112550, 114400, 117052, 123805, 146315, 180080, 198088, 225100, 234104, 247610, 292630, 321893, 360160, 396176, 450200, 468208, 495220, 585260, 619025, 643786, 731575, 792352, 900400, 936416, 990440, 1170520, 1238050, 1287572, 1463150, 1609465, 1800800, 1980880, 2341040, 2476100, 2575144, 2926300, 3218930, 3961760, 4682080, 4952200, 5150288, 5852600, 6437860, 8047325, 9904400, 10300576, 11705200, 12875720, 16094650, 19808800, 23410400, 25751440, 32189300, 51502880, 64378600, 128757200, 257514400.
If you add them up, you will get the total of 738,890,208.