7980258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 19160064

約数和(自身を除く): 11179806

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 71, 78, 131, 142, 143, 213, 262, 286, 393, 426, 429, 781, 786, 858, 923, 1441, 1562, 1703, 1846, 2343, 2769, 2882, 3406, 4323, 4686, 5109, 5538, 8646, 9301, 10153, 10218, 18602, 18733, 20306, 27903, 30459, 37466, 55806, 56199, 60918, 102311, 112398, 120913, 204622, 241826, 306933, 362739, 613866, 725478, 1330043, 2660086, 3990129, 7980258]

約数ペア:

[(1, 7980258), (2, 3990129), (3, 2660086), (6, 1330043), (11, 725478), (13, 613866), (22, 362739), (26, 306933), (33, 241826), (39, 204622), (66, 120913), (71, 112398), (78, 102311), (131, 60918), (142, 56199), (143, 55806), (213, 37466), (262, 30459), (286, 27903), (393, 20306), (426, 18733), (429, 18602), (781, 10218), (786, 10153), (858, 9301), (923, 8646), (1441, 5538), (1562, 5109), (1703, 4686), (1846, 4323), (2343, 3406), (2769, 2882)]