The factors of the number 142,222,320 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 53, 60, 72, 80, 90, 106, 120, 144, 159, 180, 212, 240, 265, 318, 360, 424, 477, 530, 636, 720, 795, 848, 954, 1060, 1272, 1590, 1908, 2120, 2385, 2544, 3180, 3727, 3816, 4240, 4770, 6360, 7454, 7632, 9540, 11181, 12720, 14908, 18635, 19080, 22362, 29816, 33543, 37270, 38160, 44724, 55905, 59632, 67086, 74540, 89448, 111810, 134172, 149080, 167715, 178896, 197531, 223620, 268344, 298160, 335430, 395062, 447240, 536688, 592593, 670860, 790124, 894480, 987655, 1185186, 1341720, 1580248, 1777779, 1975310, 2370372, 2683440, 2962965, 3160496, 3555558, 3950620, 4740744, 5925930, 7111116, 7901240, 8888895, 9481488, 11851860, 14222232, 15802480, 17777790, 23703720, 28444464, 35555580, 47407440, 71111160, 142222320.
If you add them up, you will get the total of 486,772,416.