180778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:441

約数の個数: 16

約数和(自身を含む): 309960

約数和(自身を除く): 129182

約数列:

[1, 2, 13, 17, 26, 34, 221, 409, 442, 818, 5317, 6953, 10634, 13906, 90389, 180778]

約数ペア:

[(1, 180778), (2, 90389), (13, 13906), (17, 10634), (26, 6953), (34, 5317), (221, 818), (409, 442)]