The factors of the number 250,001,766 are: 1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 281, 307, 322, 414, 483, 562, 614, 843, 921, 966, 1449, 1686, 1842, 1967, 2149, 2529, 2763, 2898, 3934, 4298, 5058, 5526, 5901, 6447, 6463, 7061, 11802, 12894, 12926, 14122, 17703, 19341, 19389, 21183, 35406, 38682, 38778, 42366, 45241, 49427, 58167, 63549, 86267, 90482, 98854, 116334, 127098, 135723, 148281, 172534, 258801, 271446, 296562, 407169, 444843, 517602, 603869, 776403, 814338, 889686, 1207738, 1552806, 1811607, 1984141, 3623214, 3968282, 5434821, 5952423, 10869642, 11904846, 13888987, 17857269, 27777974, 35714538, 41666961, 83333922, 125000883, 250001766.
If you add them up, you will get the total of 250,002,166. Now subtract 250,001,766 to get 400,375,962