261287212

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{226027}}^1$

素因数の和:226065

約数の個数: 18

約数和(自身を含む): 485734172

約数和(自身を除く): 224446960

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 226027, 452054, 904108, 3842459, 7684918, 15369836, 65321803, 130643606, 261287212]

約数ペア:

[(1, 261287212), (2, 130643606), (4, 65321803), (17, 15369836), (34, 7684918), (68, 3842459), (289, 904108), (578, 452054), (1156, 226027)]