278433800

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{5417}}^1$

素因数の和:5690

約数の個数: 48

約数和(自身を含む): 649997460

約数和(自身を除く): 371563660

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 514, 1028, 1285, 2056, 2570, 5140, 5417, 6425, 10280, 10834, 12850, 21668, 25700, 27085, 43336, 51400, 54170, 108340, 135425, 216680, 270850, 541700, 1083400, 1392169, 2784338, 5568676, 6960845, 11137352, 13921690, 27843380, 34804225, 55686760, 69608450, 139216900, 278433800]

約数ペア:

[(1, 278433800), (2, 139216900), (4, 69608450), (5, 55686760), (8, 34804225), (10, 27843380), (20, 13921690), (25, 11137352), (40, 6960845), (50, 5568676), (100, 2784338), (200, 1392169), (257, 1083400), (514, 541700), (1028, 270850), (1285, 216680), (2056, 135425), (2570, 108340), (5140, 54170), (5417, 51400), (6425, 43336), (10280, 27085), (10834, 25700), (12850, 21668)]