20209060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21499}}^1$

素因数の和:21555

約数の個数: 24

約数和(自身を含む): 43344000

約数和(自身を除く): 23134940

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21499, 42998, 85996, 107495, 214990, 429980, 1010453, 2020906, 4041812, 5052265, 10104530, 20209060]

約数ペア:

[(1, 20209060), (2, 10104530), (4, 5052265), (5, 4041812), (10, 2020906), (20, 1010453), (47, 429980), (94, 214990), (188, 107495), (235, 85996), (470, 42998), (940, 21499)]