The factors of the number 424,363,520 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 64, 68, 70, 80, 85, 98, 112, 119, 128, 136, 140, 160, 170, 196, 199, 224, 238, 245, 256, 272, 280, 320, 340, 392, 398, 448, 476, 490, 512, 544, 560, 595, 640, 680, 784, 796, 833, 896, 952, 980, 995, 1088, 1120, 1190, 1280, 1360, 1393, 1568, 1592, 1666, 1792, 1904, 1960, 1990, 2176, 2240, 2380, 2560, 2720, 2786, 3136, 3184, 3332, 3383, 3584, 3808, 3920, 3980, 4165, 4352, 4480, 4760, 5440, 5572, 6272, 6368, 6664, 6766, 6965, 7616, 7840, 7960, 8330, 8704, 8960, 9520, 9751, 10880, 11144, 12544, 12736, 13328, 13532, 13930, 15232, 15680, 15920, 16660, 16915, 17920, 19040, 19502, 21760, 22288, 23681, 25088, 25472, 26656, 27064, 27860, 30464, 31360, 31840, 33320, 33830, 38080, 39004, 43520, 44576, 47362, 48755, 50944, 53312, 54128, 55720, 60928, 62720, 63680, 66640, 67660, 76160, 78008, 89152, 94724, 97510, 101888, 106624, 108256, 111440, 118405, 125440, 127360, 133280, 135320, 152320, 156016, 165767, 178304, 189448, 195020, 213248, 216512, 222880, 236810, 254720, 266560, 270640, 304640, 312032, 331534, 356608, 378896, 390040, 426496, 433024, 445760, 473620, 509440, 533120, 541280, 624064, 663068, 713216, 757792, 780080, 828835, 866048, 891520, 947240, 1066240, 1082560, 1248128, 1326136, 1515584, 1560160, 1657670, 1732096, 1783040, 1894480, 2132480, 2165120, 2496256, 2652272, 3031168, 3120320, 3315340, 3566080, 3788960, 4330240, 4992512, 5304544, 6062336, 6240640, 6630680, 7577920, 8660480, 10609088, 12124672, 12481280, 13261360, 15155840, 21218176, 24962560, 26522720, 30311680, 42436352, 53045440, 60623360, 84872704, 106090880, 212181760, 424363520.
If you add them up, you will get the total of 1,259,517,600.