20602712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{499}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 41790000

約数和(自身を除く): 21187288

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 499, 794, 998, 1588, 1996, 3176, 3992, 5161, 6487, 10322, 12974, 20644, 25948, 41288, 51896, 198103, 396206, 792412, 1584824, 2575339, 5150678, 10301356, 20602712]

約数ペア:

[(1, 20602712), (2, 10301356), (4, 5150678), (8, 2575339), (13, 1584824), (26, 792412), (52, 396206), (104, 198103), (397, 51896), (499, 41288), (794, 25948), (998, 20644), (1588, 12974), (1996, 10322), (3176, 6487), (3992, 5161)]