The factors of the number 155,161,440 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 168, 180, 189, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 336, 360, 378, 392, 420, 432, 441, 480, 490, 504, 540, 560, 588, 630, 672, 720, 733, 735, 756, 784, 840, 864, 882, 945, 980, 1008, 1080, 1120, 1176, 1260, 1323, 1440, 1466, 1470, 1512, 1568, 1680, 1764, 1890, 1960, 2016, 2160, 2199, 2205, 2352, 2520, 2646, 2932, 2940, 3024, 3360, 3528, 3665, 3780, 3920, 4320, 4398, 4410, 4704, 5040, 5131, 5292, 5864, 5880, 6048, 6597, 6615, 7056, 7330, 7560, 7840, 8796, 8820, 10080, 10262, 10584, 10995, 11728, 11760, 13194, 13230, 14112, 14660, 15120, 15393, 17592, 17640, 19791, 20524, 21168, 21990, 23456, 23520, 25655, 26388, 26460, 29320, 30240, 30786, 32985, 35184, 35280, 35917, 39582, 41048, 42336, 43980, 46179, 51310, 52776, 52920, 58640, 61572, 65970, 70368, 70560, 71834, 76965, 79164, 82096, 87960, 92358, 98955, 102620, 105552, 105840, 107751, 117280, 123144, 131940, 138537, 143668, 153930, 158328, 164192, 175920, 179585, 184716, 197910, 205240, 211104, 211680, 215502, 230895, 246288, 263880, 277074, 287336, 307860, 316656, 323253, 351840, 359170, 369432, 395820, 410480, 431004, 461790, 492576, 527760, 538755, 554148, 574672, 615720, 633312, 646506, 692685, 718340, 738864, 791640, 820960, 862008, 923580, 969759, 1055520, 1077510, 1108296, 1149344, 1231440, 1293012, 1385370, 1436680, 1477728, 1583280, 1616265, 1724016, 1847160, 1939518, 2155020, 2216592, 2462880, 2586024, 2770740, 2873360, 3166560, 3232530, 3448032, 3694320, 3879036, 4310040, 4433184, 4848795, 5172048, 5541480, 5746720, 6465060, 7388640, 7758072, 8620080, 9697590, 10344096, 11082960, 12930120, 15516144, 17240160, 19395180, 22165920, 25860240, 31032288, 38790360, 51720480, 77580720, 155161440.
If you add them up, you will get the total of 632,590,560.