261508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 508032

約数和(自身を除く): 246524

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 107, 188, 214, 428, 611, 1222, 1391, 2444, 2782, 5029, 5564, 10058, 20116, 65377, 130754, 261508]

約数ペア:

[(1, 261508), (2, 130754), (4, 65377), (13, 20116), (26, 10058), (47, 5564), (52, 5029), (94, 2782), (107, 2444), (188, 1391), (214, 1222), (428, 611)]