678357856

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{27143}}^1$

素因数の和:27235

約数の個数: 48

約数和(自身を含む): 1477502208

約数和(自身を除く): 799144352

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 781, 1136, 1562, 2272, 3124, 6248, 12496, 24992, 27143, 54286, 108572, 217144, 298573, 434288, 597146, 868576, 1194292, 1927153, 2388584, 3854306, 4777168, 7708612, 9554336, 15417224, 21198683, 30834448, 42397366, 61668896, 84794732, 169589464, 339178928, 678357856]

約数ペア:

[(1, 678357856), (2, 339178928), (4, 169589464), (8, 84794732), (11, 61668896), (16, 42397366), (22, 30834448), (32, 21198683), (44, 15417224), (71, 9554336), (88, 7708612), (142, 4777168), (176, 3854306), (284, 2388584), (352, 1927153), (568, 1194292), (781, 868576), (1136, 597146), (1562, 434288), (2272, 298573), (3124, 217144), (6248, 108572), (12496, 54286), (24992, 27143)]