81217752

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:717

約数の個数: 128

約数和(自身を含む): 257126400

約数和(自身を除く): 175908648

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 71, 77, 84, 88, 132, 142, 154, 168, 213, 231, 264, 284, 308, 426, 462, 497, 568, 616, 619, 781, 852, 924, 994, 1238, 1491, 1562, 1704, 1848, 1857, 1988, 2343, 2476, 2982, 3124, 3714, 3976, 4333, 4686, 4952, 5467, 5964, 6248, 6809, 7428, 8666, 9372, 10934, 11928, 12999, 13618, 14856, 16401, 17332, 18744, 20427, 21868, 25998, 27236, 32802, 34664, 40854, 43736, 43949, 47663, 51996, 54472, 65604, 81708, 87898, 95326, 103992, 131208, 131847, 142989, 163416, 175796, 190652, 263694, 285978, 307643, 351592, 381304, 483439, 527388, 571956, 615286, 922929, 966878, 1054776, 1143912, 1230572, 1450317, 1845858, 1933756, 2461144, 2900634, 3384073, 3691716, 3867512, 5801268, 6768146, 7383432, 10152219, 11602536, 13536292, 20304438, 27072584, 40608876, 81217752]

約数ペア:

[(1, 81217752), (2, 40608876), (3, 27072584), (4, 20304438), (6, 13536292), (7, 11602536), (8, 10152219), (11, 7383432), (12, 6768146), (14, 5801268), (21, 3867512), (22, 3691716), (24, 3384073), (28, 2900634), (33, 2461144), (42, 1933756), (44, 1845858), (56, 1450317), (66, 1230572), (71, 1143912), (77, 1054776), (84, 966878), (88, 922929), (132, 615286), (142, 571956), (154, 527388), (168, 483439), (213, 381304), (231, 351592), (264, 307643), (284, 285978), (308, 263694), (426, 190652), (462, 175796), (497, 163416), (568, 142989), (616, 131847), (619, 131208), (781, 103992), (852, 95326), (924, 87898), (994, 81708), (1238, 65604), (1491, 54472), (1562, 51996), (1704, 47663), (1848, 43949), (1857, 43736), (1988, 40854), (2343, 34664), (2476, 32802), (2982, 27236), (3124, 25998), (3714, 21868), (3976, 20427), (4333, 18744), (4686, 17332), (4952, 16401), (5467, 14856), (5964, 13618), (6248, 12999), (6809, 11928), (7428, 10934), (8666, 9372)]