The factors of the number 440,407,440 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 20, 22, 24, 30, 33, 34, 36, 40, 44, 45, 48, 51, 55, 60, 66, 68, 72, 80, 85, 88, 90, 99, 102, 110, 120, 132, 136, 144, 153, 165, 170, 176, 180, 187, 198, 204, 220, 240, 255, 264, 272, 306, 330, 340, 360, 374, 396, 408, 440, 495, 510, 528, 561, 612, 660, 680, 720, 748, 765, 792, 816, 880, 935, 990, 1020, 1122, 1224, 1320, 1360, 1496, 1530, 1584, 1683, 1870, 1980, 2040, 2244, 2448, 2640, 2805, 2992, 3060, 3271, 3366, 3740, 3960, 4080, 4488, 5610, 6120, 6542, 6732, 7480, 7920, 8415, 8976, 9813, 11220, 12240, 13084, 13464, 14960, 16355, 16830, 19626, 22440, 26168, 26928, 29439, 32710, 33660, 35981, 39252, 44880, 49065, 52336, 55607, 58878, 65420, 67320, 71962, 78504, 98130, 107943, 111214, 117756, 130840, 134640, 143924, 147195, 157008, 166821, 179905, 196260, 215886, 222428, 235512, 261680, 278035, 287848, 294390, 323829, 333642, 359810, 392520, 431772, 444856, 471024, 500463, 539715, 556070, 575696, 588780, 611677, 647658, 667284, 719620, 785040, 834105, 863544, 889712, 1000926, 1079430, 1112140, 1177560, 1223354, 1295316, 1334568, 1439240, 1619145, 1668210, 1727088, 1835031, 2001852, 2158860, 2224280, 2355120, 2446708, 2502315, 2590632, 2669136, 2878480, 3058385, 3238290, 3336420, 3670062, 4003704, 4317720, 4448560, 4893416, 5004630, 5181264, 5505093, 6116770, 6476580, 6672840, 7340124, 8007408, 8635440, 9175155, 9786832, 10009260, 11010186, 12233540, 12953160, 13345680, 14680248, 18350310, 20018520, 22020372, 24467080, 25906320, 27525465, 29360496, 36700620, 40037040, 44040744, 48934160, 55050930, 73401240, 88081488, 110101860, 146802480, 220203720, 440407440.
If you add them up, you will get the total of 1,708,926,336.