256542

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 48

約数和(自身を含む): 632448

約数和(自身を除く): 375906

約数列:

[1, 2, 3, 6, 11, 13, 22, 23, 26, 33, 39, 46, 66, 69, 78, 138, 143, 169, 253, 286, 299, 338, 429, 506, 507, 598, 759, 858, 897, 1014, 1518, 1794, 1859, 3289, 3718, 3887, 5577, 6578, 7774, 9867, 11154, 11661, 19734, 23322, 42757, 85514, 128271, 256542]

約数ペア:

[(1, 256542), (2, 128271), (3, 85514), (6, 42757), (11, 23322), (13, 19734), (22, 11661), (23, 11154), (26, 9867), (33, 7774), (39, 6578), (46, 5577), (66, 3887), (69, 3718), (78, 3289), (138, 1859), (143, 1794), (169, 1518), (253, 1014), (286, 897), (299, 858), (338, 759), (429, 598), (506, 507)]