28178612

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{479}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 61931520

約数和(自身を除く): 33752908

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 191, 308, 382, 479, 764, 958, 1337, 1916, 2101, 2674, 3353, 4202, 5269, 5348, 6706, 8404, 10538, 13412, 14707, 21076, 29414, 36883, 58828, 73766, 91489, 147532, 182978, 365956, 640423, 1006379, 1280846, 2012758, 2561692, 4025516, 7044653, 14089306, 28178612]

約数ペア:

[(1, 28178612), (2, 14089306), (4, 7044653), (7, 4025516), (11, 2561692), (14, 2012758), (22, 1280846), (28, 1006379), (44, 640423), (77, 365956), (154, 182978), (191, 147532), (308, 91489), (382, 73766), (479, 58828), (764, 36883), (958, 29414), (1337, 21076), (1916, 14707), (2101, 13412), (2674, 10538), (3353, 8404), (4202, 6706), (5269, 5348)]