The factors of the number 310,708,288 are: 1, 2, 4, 8, 11, 16, 22, 23, 31, 32, 44, 46, 62, 64, 88, 92, 124, 176, 184, 248, 253, 341, 352, 368, 496, 506, 619, 682, 704, 713, 736, 992, 1012, 1238, 1364, 1426, 1472, 1984, 2024, 2476, 2728, 2852, 4048, 4952, 5456, 5704, 6809, 7843, 8096, 9904, 10912, 11408, 13618, 14237, 15686, 16192, 19189, 19808, 21824, 22816, 27236, 28474, 31372, 38378, 39616, 45632, 54472, 56948, 62744, 76756, 108944, 113896, 125488, 153512, 156607, 211079, 217888, 227792, 250976, 307024, 313214, 422158, 435776, 441347, 455584, 501952, 614048, 626428, 844316, 882694, 911168, 1228096, 1252856, 1688632, 1765388, 2505712, 3377264, 3530776, 4854817, 5011424, 6754528, 7061552, 9709634, 10022848, 13509056, 14123104, 19419268, 28246208, 38838536, 77677072, 155354144, 310708288.
If you add them up, you will get the total of 725,667,840.