678678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 1838592

約数和(自身を除く): 1159914

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 113, 143, 154, 182, 226, 231, 273, 286, 339, 429, 462, 546, 678, 791, 858, 1001, 1243, 1469, 1582, 2002, 2373, 2486, 2938, 3003, 3729, 4407, 4746, 6006, 7458, 8701, 8814, 10283, 16159, 17402, 20566, 26103, 30849, 32318, 48477, 52206, 61698, 96954, 113113, 226226, 339339, 678678]

約数ペア:

[(1, 678678), (2, 339339), (3, 226226), (6, 113113), (7, 96954), (11, 61698), (13, 52206), (14, 48477), (21, 32318), (22, 30849), (26, 26103), (33, 20566), (39, 17402), (42, 16159), (66, 10283), (77, 8814), (78, 8701), (91, 7458), (113, 6006), (143, 4746), (154, 4407), (182, 3729), (226, 3003), (231, 2938), (273, 2486), (286, 2373), (339, 2002), (429, 1582), (462, 1469), (546, 1243), (678, 1001), (791, 858)]