209827340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{255887}}^1$

素因数の和:255937

約数の個数: 24

約数和(自身を含む): 451386432

約数和(自身を除く): 241559092

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 255887, 511774, 1023548, 1279435, 2558870, 5117740, 10491367, 20982734, 41965468, 52456835, 104913670, 209827340]

約数ペア:

[(1, 209827340), (2, 104913670), (4, 52456835), (5, 41965468), (10, 20982734), (20, 10491367), (41, 5117740), (82, 2558870), (164, 1279435), (205, 1023548), (410, 511774), (820, 255887)]