208432820

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{10453}}^1$

素因数の和:11459

約数の個数: 24

約数和(自身を含む): 438189864

約数和(自身を除く): 229757044

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 9970, 10453, 19940, 20906, 41812, 52265, 104530, 209060, 10421641, 20843282, 41686564, 52108205, 104216410, 208432820]

約数ペア:

[(1, 208432820), (2, 104216410), (4, 52108205), (5, 41686564), (10, 20843282), (20, 10421641), (997, 209060), (1994, 104530), (3988, 52265), (4985, 41812), (9970, 20906), (10453, 19940)]