1256285457

素因数分解:

$3^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19961}}^1$

素因数の和:20020

約数の個数: 48

約数和(自身を含む): 2208915072

約数和(自身を除く): 952629615

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 243, 259, 333, 567, 777, 999, 1701, 2331, 2997, 6993, 8991, 19961, 20979, 59883, 62937, 139727, 179649, 419181, 538947, 738557, 1257543, 1616841, 2215671, 3772629, 4850523, 5169899, 6647013, 11317887, 15509697, 19941039, 33953661, 46529091, 59823117, 139587273, 179469351, 418761819, 1256285457]

約数ペア:

[(1, 1256285457), (3, 418761819), (7, 179469351), (9, 139587273), (21, 59823117), (27, 46529091), (37, 33953661), (63, 19941039), (81, 15509697), (111, 11317887), (189, 6647013), (243, 5169899), (259, 4850523), (333, 3772629), (567, 2215671), (777, 1616841), (999, 1257543), (1701, 738557), (2331, 538947), (2997, 419181), (6993, 179649), (8991, 139727), (19961, 62937), (20979, 59883)]