642642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 1741824

約数和(自身を除く): 1099182

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 107, 143, 154, 182, 214, 231, 273, 286, 321, 429, 462, 546, 642, 749, 858, 1001, 1177, 1391, 1498, 2002, 2247, 2354, 2782, 3003, 3531, 4173, 4494, 6006, 7062, 8239, 8346, 9737, 15301, 16478, 19474, 24717, 29211, 30602, 45903, 49434, 58422, 91806, 107107, 214214, 321321, 642642]

約数ペア:

[(1, 642642), (2, 321321), (3, 214214), (6, 107107), (7, 91806), (11, 58422), (13, 49434), (14, 45903), (21, 30602), (22, 29211), (26, 24717), (33, 19474), (39, 16478), (42, 15301), (66, 9737), (77, 8346), (78, 8239), (91, 7062), (107, 6006), (143, 4494), (154, 4173), (182, 3531), (214, 3003), (231, 2782), (273, 2354), (286, 2247), (321, 2002), (429, 1498), (462, 1391), (546, 1177), (642, 1001), (749, 858)]