440940032

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2199

約数の個数: 80

約数和(自身を含む): 979853952

約数和(自身を除く): 538913920

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1612, 1664, 1984, 2137, 3224, 3328, 3968, 4274, 6448, 6656, 7936, 8548, 12896, 15872, 17096, 25792, 27781, 34192, 51584, 55562, 66247, 68384, 103168, 111124, 132494, 136768, 206336, 222248, 264988, 273536, 444496, 529976, 547072, 861211, 888992, 1059952, 1094144, 1722422, 1777984, 2119904, 3444844, 3555968, 4239808, 6889688, 7111936, 8479616, 13779376, 14223872, 16959232, 27558752, 33918464, 55117504, 110235008, 220470016, 440940032]

約数ペア:

[(1, 440940032), (2, 220470016), (4, 110235008), (8, 55117504), (13, 33918464), (16, 27558752), (26, 16959232), (31, 14223872), (32, 13779376), (52, 8479616), (62, 7111936), (64, 6889688), (104, 4239808), (124, 3555968), (128, 3444844), (208, 2119904), (248, 1777984), (256, 1722422), (403, 1094144), (416, 1059952), (496, 888992), (512, 861211), (806, 547072), (832, 529976), (992, 444496), (1612, 273536), (1664, 264988), (1984, 222248), (2137, 206336), (3224, 136768), (3328, 132494), (3968, 111124), (4274, 103168), (6448, 68384), (6656, 66247), (7936, 55562), (8548, 51584), (12896, 34192), (15872, 27781), (17096, 25792)]