205122020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{105733}}^1$

素因数の和:105839

約数の個数: 24

約数和(自身を含む): 435201144

約数和(自身を除く): 230079124

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 105733, 211466, 422932, 528665, 1057330, 2114660, 10256101, 20512202, 41024404, 51280505, 102561010, 205122020]

約数ペア:

[(1, 205122020), (2, 102561010), (4, 51280505), (5, 41024404), (10, 20512202), (20, 10256101), (97, 2114660), (194, 1057330), (388, 528665), (485, 422932), (970, 211466), (1940, 105733)]