The factors of the number 131,210,520 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 181, 210, 280, 362, 420, 543, 724, 840, 863, 905, 1086, 1267, 1448, 1726, 1810, 2172, 2534, 2589, 2715, 3452, 3620, 3801, 4315, 4344, 5068, 5178, 5430, 6041, 6335, 6904, 7240, 7602, 8630, 10136, 10356, 10860, 12082, 12670, 12945, 15204, 17260, 18123, 19005, 20712, 21720, 24164, 25340, 25890, 30205, 30408, 34520, 36246, 38010, 48328, 50680, 51780, 60410, 72492, 76020, 90615, 103560, 120820, 144984, 152040, 156203, 181230, 241640, 312406, 362460, 468609, 624812, 724920, 781015, 937218, 1093421, 1249624, 1562030, 1874436, 2186842, 2343045, 3124060, 3280263, 3748872, 4373684, 4686090, 5467105, 6248120, 6560526, 8747368, 9372180, 10934210, 13121052, 16401315, 18744360, 21868420, 26242104, 32802630, 43736840, 65605260, 131210520.
If you add them up, you will get the total of 131,210,841. Now subtract 131,210,520 to get 321,663,720