20123672

素因数分解:

$2^3\times {\mathrm{71}}^2\times {\mathrm{499}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 38347500

約数和(自身を除く): 18223828

約数列:

[1, 2, 4, 8, 71, 142, 284, 499, 568, 998, 1996, 3992, 5041, 10082, 20164, 35429, 40328, 70858, 141716, 283432, 2515459, 5030918, 10061836, 20123672]

約数ペア:

[(1, 20123672), (2, 10061836), (4, 5030918), (8, 2515459), (71, 283432), (142, 141716), (284, 70858), (499, 40328), (568, 35429), (998, 20164), (1996, 10082), (3992, 5041)]