257994324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:910

約数の個数: 144

約数和(自身を含む): 789909120

約数和(自身を除く): 531914796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 43, 58, 63, 84, 86, 87, 116, 126, 129, 172, 174, 203, 252, 258, 261, 301, 348, 387, 406, 516, 522, 602, 609, 774, 812, 821, 903, 1044, 1204, 1218, 1247, 1548, 1642, 1806, 1827, 2436, 2463, 2494, 2709, 3284, 3612, 3654, 3741, 4926, 4988, 5418, 5747, 7308, 7389, 7482, 8729, 9852, 10836, 11223, 11494, 14778, 14964, 17241, 17458, 22446, 22988, 23809, 26187, 29556, 34482, 34916, 35303, 44892, 47618, 51723, 52374, 68964, 70606, 71427, 78561, 95236, 103446, 104748, 105909, 141212, 142854, 157122, 166663, 206892, 211818, 214281, 247121, 285708, 314244, 317727, 333326, 423636, 428562, 494242, 499989, 635454, 666652, 741363, 857124, 988484, 999978, 1023787, 1270908, 1482726, 1499967, 1999956, 2047574, 2224089, 2965452, 2999934, 3071361, 4095148, 4448178, 5999868, 6142722, 7166509, 8896356, 9214083, 12285444, 14333018, 18428166, 21499527, 28666036, 36856332, 42999054, 64498581, 85998108, 128997162, 257994324]

約数ペア:

[(1, 257994324), (2, 128997162), (3, 85998108), (4, 64498581), (6, 42999054), (7, 36856332), (9, 28666036), (12, 21499527), (14, 18428166), (18, 14333018), (21, 12285444), (28, 9214083), (29, 8896356), (36, 7166509), (42, 6142722), (43, 5999868), (58, 4448178), (63, 4095148), (84, 3071361), (86, 2999934), (87, 2965452), (116, 2224089), (126, 2047574), (129, 1999956), (172, 1499967), (174, 1482726), (203, 1270908), (252, 1023787), (258, 999978), (261, 988484), (301, 857124), (348, 741363), (387, 666652), (406, 635454), (516, 499989), (522, 494242), (602, 428562), (609, 423636), (774, 333326), (812, 317727), (821, 314244), (903, 285708), (1044, 247121), (1204, 214281), (1218, 211818), (1247, 206892), (1548, 166663), (1642, 157122), (1806, 142854), (1827, 141212), (2436, 105909), (2463, 104748), (2494, 103446), (2709, 95236), (3284, 78561), (3612, 71427), (3654, 70606), (3741, 68964), (4926, 52374), (4988, 51723), (5418, 47618), (5747, 44892), (7308, 35303), (7389, 34916), (7482, 34482), (8729, 29556), (9852, 26187), (10836, 23809), (11223, 22988), (11494, 22446), (14778, 17458), (14964, 17241)]