20199312008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{536189}}^1$

素因数の和:536489

約数の個数: 32

約数和(自身を含む): 40246421400

約数和(自身を除く): 20047109392

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 277, 554, 1108, 2216, 4709, 9418, 18836, 37672, 536189, 1072378, 2144756, 4289512, 9115213, 18230426, 36460852, 72921704, 148524353, 297048706, 594097412, 1188194824, 2524914001, 5049828002, 10099656004, 20199312008]

約数ペア:

[(1, 20199312008), (2, 10099656004), (4, 5049828002), (8, 2524914001), (17, 1188194824), (34, 594097412), (68, 297048706), (136, 148524353), (277, 72921704), (554, 36460852), (1108, 18230426), (2216, 9115213), (4709, 4289512), (9418, 2144756), (18836, 1072378), (37672, 536189)]