20158120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21911}}^1$

素因数の和:21945

約数の個数: 32

約数和(自身を含む): 47329920

約数和(自身を除く): 27171800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21911, 43822, 87644, 109555, 175288, 219110, 438220, 503953, 876440, 1007906, 2015812, 2519765, 4031624, 5039530, 10079060, 20158120]

約数ペア:

[(1, 20158120), (2, 10079060), (4, 5039530), (5, 4031624), (8, 2519765), (10, 2015812), (20, 1007906), (23, 876440), (40, 503953), (46, 438220), (92, 219110), (115, 175288), (184, 109555), (230, 87644), (460, 43822), (920, 21911)]