20338288

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10009}}^1$

素因数の和:10144

約数の個数: 20

約数和(自身を含む): 39719680

約数和(自身を除く): 19381392

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10009, 20018, 40036, 80072, 160144, 1271143, 2542286, 5084572, 10169144, 20338288]

約数ペア:

[(1, 20338288), (2, 10169144), (4, 5084572), (8, 2542286), (16, 1271143), (127, 160144), (254, 80072), (508, 40036), (1016, 20018), (2032, 10009)]