258999741

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 538937280

約数和(自身を除く): 279937539

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 37, 39, 49, 63, 77, 91, 99, 111, 117, 143, 147, 189, 231, 259, 273, 297, 333, 351, 407, 429, 441, 481, 539, 637, 693, 777, 819, 999, 1001, 1221, 1287, 1323, 1369, 1443, 1617, 1813, 1911, 2079, 2331, 2457, 2849, 3003, 3367, 3663, 3861, 4107, 4329, 4851, 5291, 5439, 5733, 6993, 7007, 8547, 9009, 9583, 10101, 10989, 12321, 12987, 14553, 15059, 15873, 16317, 17199, 17797, 19943, 21021, 23569, 25641, 27027, 28749, 30303, 36963, 37037, 45177, 47619, 48951, 53391, 59829, 63063, 67081, 70707, 76923, 86247, 90909, 105413, 111111, 124579, 135531, 142857, 160173, 179487, 189189, 195767, 201243, 212121, 258741, 259259, 316239, 333333, 373737, 406593, 480519, 538461, 587301, 603729, 636363, 737891, 777777, 872053, 948717, 999999, 1121211, 1370369, 1761903, 1811187, 2213673, 2333331, 2616159, 2846151, 3363633, 4111107, 5285709, 6641019, 6999993, 7848477, 9592583, 12333321, 19923057, 23545431, 28777749, 36999963, 86333247, 258999741]

約数ペア:

[(1, 258999741), (3, 86333247), (7, 36999963), (9, 28777749), (11, 23545431), (13, 19923057), (21, 12333321), (27, 9592583), (33, 7848477), (37, 6999993), (39, 6641019), (49, 5285709), (63, 4111107), (77, 3363633), (91, 2846151), (99, 2616159), (111, 2333331), (117, 2213673), (143, 1811187), (147, 1761903), (189, 1370369), (231, 1121211), (259, 999999), (273, 948717), (297, 872053), (333, 777777), (351, 737891), (407, 636363), (429, 603729), (441, 587301), (481, 538461), (539, 480519), (637, 406593), (693, 373737), (777, 333333), (819, 316239), (999, 259259), (1001, 258741), (1221, 212121), (1287, 201243), (1323, 195767), (1369, 189189), (1443, 179487), (1617, 160173), (1813, 142857), (1911, 135531), (2079, 124579), (2331, 111111), (2457, 105413), (2849, 90909), (3003, 86247), (3367, 76923), (3663, 70707), (3861, 67081), (4107, 63063), (4329, 59829), (4851, 53391), (5291, 48951), (5439, 47619), (5733, 45177), (6993, 37037), (7007, 36963), (8547, 30303), (9009, 28749), (9583, 27027), (10101, 25641), (10989, 23569), (12321, 21021), (12987, 19943), (14553, 17797), (15059, 17199), (15873, 16317)]