131567680

素因数分解:

$2^6\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1297}}^1$

素因数の和:1631

約数の個数: 56

約数和(自身を含む): 314526168

約数和(自身を除く): 182958488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 317, 320, 634, 1268, 1297, 1585, 2536, 2594, 3170, 5072, 5188, 6340, 6485, 10144, 10376, 12680, 12970, 20288, 20752, 25360, 25940, 41504, 50720, 51880, 83008, 101440, 103760, 207520, 411149, 415040, 822298, 1644596, 2055745, 3289192, 4111490, 6578384, 8222980, 13156768, 16445960, 26313536, 32891920, 65783840, 131567680]

約数ペア:

[(1, 131567680), (2, 65783840), (4, 32891920), (5, 26313536), (8, 16445960), (10, 13156768), (16, 8222980), (20, 6578384), (32, 4111490), (40, 3289192), (64, 2055745), (80, 1644596), (160, 822298), (317, 415040), (320, 411149), (634, 207520), (1268, 103760), (1297, 101440), (1585, 83008), (2536, 51880), (2594, 50720), (3170, 41504), (5072, 25940), (5188, 25360), (6340, 20752), (6485, 20288), (10144, 12970), (10376, 12680)]