255668

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 534912

約数和(自身を除く): 279244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 397, 644, 794, 1588, 2779, 5558, 9131, 11116, 18262, 36524, 63917, 127834, 255668]

約数ペア:

[(1, 255668), (2, 127834), (4, 63917), (7, 36524), (14, 18262), (23, 11116), (28, 9131), (46, 5558), (92, 2779), (161, 1588), (322, 794), (397, 644)]