The factors of the number 305,623,773 are: 1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 81, 91, 117, 119, 153, 189, 221, 243, 271, 273, 351, 357, 459, 567, 663, 729, 813, 819, 1053, 1071, 1377, 1547, 1701, 1897, 1989, 2439, 2457, 3159, 3213, 3523, 4131, 4607, 4641, 5103, 5691, 5967, 7317, 7371, 9477, 9639, 10569, 12393, 13821, 13923, 17073, 17901, 21951, 22113, 24661, 28917, 31707, 32249, 41463, 41769, 51219, 53703, 59891, 65853, 66339, 73983, 86751, 95121, 96747, 124389, 125307, 153657, 161109, 179673, 197559, 221949, 285363, 290241, 373167, 375921, 419237, 460971, 539019, 665847, 856089, 870723, 1119501, 1127763, 1257711, 1382913, 1617057, 1997541, 2568267, 2612169, 3358503, 3773133, 4851171, 5992623, 7836507, 11319399, 14553513, 17977869, 23509521, 33958197, 43660539, 101874591, 305623773.
If you add them up, you will get the total of 599,348,736.