668859849

素因数分解:

$3^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 120

約数和(自身を含む): 1287145728

約数和(自身を除く): 618285879

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 49, 51, 63, 69, 81, 119, 147, 153, 161, 189, 207, 357, 391, 431, 441, 459, 483, 567, 621, 833, 1071, 1127, 1173, 1293, 1323, 1377, 1449, 1863, 2499, 2737, 3017, 3213, 3381, 3519, 3879, 3969, 4347, 7327, 7497, 8211, 9051, 9639, 9913, 10143, 10557, 11637, 13041, 19159, 21119, 21981, 22491, 24633, 27153, 29739, 30429, 31671, 34911, 51289, 57477, 63357, 65943, 67473, 69391, 73899, 81459, 89217, 91287, 153867, 168521, 172431, 190071, 197829, 208173, 221697, 244377, 267651, 359023, 461601, 485737, 505563, 517293, 570213, 593487, 624519, 802953, 1077069, 1179647, 1384803, 1457211, 1516689, 1551879, 1710639, 1873557, 3231207, 3538941, 4154409, 4371633, 4550067, 5620671, 8257529, 9693621, 10616823, 13114899, 13650201, 24772587, 29080863, 31850469, 39344697, 74317761, 95551407, 222953283, 668859849]

約数ペア:

[(1, 668859849), (3, 222953283), (7, 95551407), (9, 74317761), (17, 39344697), (21, 31850469), (23, 29080863), (27, 24772587), (49, 13650201), (51, 13114899), (63, 10616823), (69, 9693621), (81, 8257529), (119, 5620671), (147, 4550067), (153, 4371633), (161, 4154409), (189, 3538941), (207, 3231207), (357, 1873557), (391, 1710639), (431, 1551879), (441, 1516689), (459, 1457211), (483, 1384803), (567, 1179647), (621, 1077069), (833, 802953), (1071, 624519), (1127, 593487), (1173, 570213), (1293, 517293), (1323, 505563), (1377, 485737), (1449, 461601), (1863, 359023), (2499, 267651), (2737, 244377), (3017, 221697), (3213, 208173), (3381, 197829), (3519, 190071), (3879, 172431), (3969, 168521), (4347, 153867), (7327, 91287), (7497, 89217), (8211, 81459), (9051, 73899), (9639, 69391), (9913, 67473), (10143, 65943), (10557, 63357), (11637, 57477), (13041, 51289), (19159, 34911), (21119, 31671), (21981, 30429), (22491, 29739), (24633, 27153)]