209599540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{108041}}^1$

素因数の和:108147

約数の個数: 24

約数和(自身を含む): 444700872

約数和(自身を除く): 235101332

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 108041, 216082, 432164, 540205, 1080410, 2160820, 10479977, 20959954, 41919908, 52399885, 104799770, 209599540]

約数ペア:

[(1, 209599540), (2, 104799770), (4, 52399885), (5, 41919908), (10, 20959954), (20, 10479977), (97, 2160820), (194, 1080410), (388, 540205), (485, 432164), (970, 216082), (1940, 108041)]