12840208

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:295

約数の個数: 40

約数和(自身を含む): 25712640

約数和(自身を除く): 12872432

約数列:

[1, 2, 4, 8, 16, 71, 89, 127, 142, 178, 254, 284, 356, 508, 568, 712, 1016, 1136, 1424, 2032, 6319, 9017, 11303, 12638, 18034, 22606, 25276, 36068, 45212, 50552, 72136, 90424, 101104, 144272, 180848, 802513, 1605026, 3210052, 6420104, 12840208]

約数ペア:

[(1, 12840208), (2, 6420104), (4, 3210052), (8, 1605026), (16, 802513), (71, 180848), (89, 144272), (127, 101104), (142, 90424), (178, 72136), (254, 50552), (284, 45212), (356, 36068), (508, 25276), (568, 22606), (712, 18034), (1016, 12638), (1136, 11303), (1424, 9017), (2032, 6319)]