81920008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{3121}}^1$

素因数の和:3337

約数の個数: 32

約数和(自身を含む): 163530360

約数和(自身を除く): 81610352

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 193, 386, 772, 1544, 3121, 3281, 6242, 6562, 12484, 13124, 24968, 26248, 53057, 106114, 212228, 424456, 602353, 1204706, 2409412, 4818824, 10240001, 20480002, 40960004, 81920008]

約数ペア:

[(1, 81920008), (2, 40960004), (4, 20480002), (8, 10240001), (17, 4818824), (34, 2409412), (68, 1204706), (136, 602353), (193, 424456), (386, 212228), (772, 106114), (1544, 53057), (3121, 26248), (3281, 24968), (6242, 13124), (6562, 12484)]