The factors of the number 252,134,280 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 37, 40, 45, 46, 60, 69, 72, 74, 90, 92, 111, 115, 120, 138, 148, 180, 184, 185, 207, 222, 230, 276, 296, 333, 345, 360, 370, 414, 444, 460, 552, 555, 666, 690, 740, 823, 828, 851, 888, 920, 1035, 1110, 1332, 1380, 1480, 1646, 1656, 1665, 1702, 2070, 2220, 2469, 2553, 2664, 2760, 3292, 3330, 3404, 4115, 4140, 4255, 4440, 4938, 5106, 6584, 6660, 6808, 7407, 7659, 8230, 8280, 8510, 9876, 10212, 12345, 12765, 13320, 14814, 15318, 16460, 17020, 18929, 19752, 20424, 24690, 25530, 29628, 30451, 30636, 32920, 34040, 37035, 37858, 38295, 49380, 51060, 56787, 59256, 60902, 61272, 74070, 75716, 76590, 91353, 94645, 98760, 102120, 113574, 121804, 148140, 151432, 152255, 153180, 170361, 182706, 189290, 227148, 243608, 274059, 283935, 296280, 304510, 306360, 340722, 365412, 378580, 454296, 456765, 548118, 567870, 609020, 681444, 700373, 730824, 757160, 851805, 913530, 1096236, 1135740, 1218040, 1362888, 1370295, 1400746, 1703610, 1827060, 2101119, 2192472, 2271480, 2740590, 2801492, 3407220, 3501865, 3654120, 4202238, 5481180, 5602984, 6303357, 6814440, 7003730, 8404476, 10505595, 10962360, 12606714, 14007460, 16808952, 21011190, 25213428, 28014920, 31516785, 42022380, 50426856, 63033570, 84044760, 126067140, 252134280.
If you add them up, you will get the total of 879,240,960.