28193074

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 28577486

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 62, 91, 133, 182, 217, 247, 263, 266, 403, 434, 494, 526, 589, 806, 1178, 1729, 1841, 2821, 3419, 3458, 3682, 4123, 4997, 5642, 6838, 7657, 8153, 8246, 9994, 15314, 16306, 23933, 34979, 47866, 53599, 57071, 64961, 69958, 105989, 107198, 114142, 129922, 154907, 211978, 309814, 454727, 741923, 909454, 1084349, 1483846, 2013791, 2168698, 4027582, 14096537, 28193074]

約数ペア:

[(1, 28193074), (2, 14096537), (7, 4027582), (13, 2168698), (14, 2013791), (19, 1483846), (26, 1084349), (31, 909454), (38, 741923), (62, 454727), (91, 309814), (133, 211978), (182, 154907), (217, 129922), (247, 114142), (263, 107198), (266, 105989), (403, 69958), (434, 64961), (494, 57071), (526, 53599), (589, 47866), (806, 34979), (1178, 23933), (1729, 16306), (1841, 15314), (2821, 9994), (3419, 8246), (3458, 8153), (3682, 7657), (4123, 6838), (4997, 5642)]