128195556

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{248441}}^1$

素因数の和:248491

約数の個数: 24

約数和(自身を含む): 306080544

約数和(自身を除く): 177884988

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 248441, 496882, 745323, 993764, 1490646, 2981292, 10682963, 21365926, 32048889, 42731852, 64097778, 128195556]

約数ペア:

[(1, 128195556), (2, 64097778), (3, 42731852), (4, 32048889), (6, 21365926), (12, 10682963), (43, 2981292), (86, 1490646), (129, 993764), (172, 745323), (258, 496882), (516, 248441)]