The factors of the number 642,723,144 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 613, 632, 948, 1106, 1226, 1659, 1839, 1896, 2212, 2452, 3318, 3678, 4291, 4424, 4904, 6241, 6636, 7356, 8582, 12482, 12873, 13272, 14712, 17164, 18723, 24964, 25746, 34328, 37446, 43687, 48427, 49928, 51492, 74892, 87374, 96854, 102984, 131061, 145281, 149784, 174748, 193708, 262122, 290562, 338989, 349496, 387416, 524244, 581124, 677978, 1016967, 1048488, 1162248, 1355956, 2033934, 2711912, 3825733, 4067868, 7651466, 8135736, 11477199, 15302932, 22954398, 26780131, 30605864, 45908796, 53560262, 80340393, 91817592, 107120524, 160680786, 214241048, 321361572, 642723144.
If you add them up, you will get the total of 642,723,145. Now subtract 642,723,144 to get 1,220,201,976