The factors of the number 131,544,540 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 71, 73, 90, 94, 108, 135, 141, 142, 146, 180, 188, 213, 219, 235, 270, 282, 284, 292, 355, 365, 423, 426, 438, 470, 540, 564, 639, 657, 705, 710, 730, 846, 852, 876, 940, 1065, 1095, 1269, 1278, 1314, 1410, 1420, 1460, 1692, 1917, 1971, 2115, 2130, 2190, 2538, 2556, 2628, 2820, 3195, 3285, 3337, 3431, 3834, 3942, 4230, 4260, 4380, 5076, 5183, 6345, 6390, 6570, 6674, 6862, 7668, 7884, 8460, 9585, 9855, 10011, 10293, 10366, 12690, 12780, 13140, 13348, 13724, 15549, 16685, 17155, 19170, 19710, 20022, 20586, 20732, 25380, 25915, 30033, 30879, 31098, 33370, 34310, 38340, 39420, 40044, 41172, 46647, 50055, 51465, 51830, 60066, 61758, 62196, 66740, 68620, 77745, 90099, 92637, 93294, 100110, 102930, 103660, 120132, 123516, 139941, 150165, 154395, 155490, 180198, 185274, 186588, 200220, 205860, 233235, 243601, 279882, 300330, 308790, 310980, 360396, 370548, 450495, 463185, 466470, 487202, 559764, 600660, 617580, 699705, 730803, 900990, 926370, 932940, 974404, 1218005, 1399410, 1461606, 1801980, 1852740, 2192409, 2436010, 2798820, 2923212, 3654015, 4384818, 4872020, 6577227, 7308030, 8769636, 10962045, 13154454, 14616060, 21924090, 26308908, 32886135, 43848180, 65772270, 131544540.
If you add them up, you will get the total of 429,649,920.