28012908

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 85494528

約数和(自身を除く): 57481620

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 61, 66, 71, 77, 84, 98, 122, 132, 142, 147, 154, 183, 196, 213, 231, 244, 284, 294, 308, 366, 426, 427, 462, 497, 539, 588, 671, 732, 781, 852, 854, 924, 994, 1078, 1281, 1342, 1491, 1562, 1617, 1708, 1988, 2013, 2156, 2343, 2562, 2684, 2982, 2989, 3124, 3234, 3479, 4026, 4331, 4686, 4697, 5124, 5467, 5964, 5978, 6468, 6958, 8052, 8662, 8967, 9372, 9394, 10437, 10934, 11956, 12993, 13916, 14091, 16401, 17324, 17934, 18788, 20874, 21868, 25986, 28182, 30317, 32802, 32879, 35868, 38269, 41748, 47641, 51972, 56364, 60634, 65604, 65758, 76538, 90951, 95282, 98637, 114807, 121268, 131516, 142923, 153076, 181902, 190564, 197274, 212219, 229614, 285846, 333487, 363804, 394548, 424438, 459228, 571692, 636657, 666974, 848876, 1000461, 1273314, 1333948, 2000922, 2334409, 2546628, 4001844, 4668818, 7003227, 9337636, 14006454, 28012908]

約数ペア:

[(1, 28012908), (2, 14006454), (3, 9337636), (4, 7003227), (6, 4668818), (7, 4001844), (11, 2546628), (12, 2334409), (14, 2000922), (21, 1333948), (22, 1273314), (28, 1000461), (33, 848876), (42, 666974), (44, 636657), (49, 571692), (61, 459228), (66, 424438), (71, 394548), (77, 363804), (84, 333487), (98, 285846), (122, 229614), (132, 212219), (142, 197274), (147, 190564), (154, 181902), (183, 153076), (196, 142923), (213, 131516), (231, 121268), (244, 114807), (284, 98637), (294, 95282), (308, 90951), (366, 76538), (426, 65758), (427, 65604), (462, 60634), (497, 56364), (539, 51972), (588, 47641), (671, 41748), (732, 38269), (781, 35868), (852, 32879), (854, 32802), (924, 30317), (994, 28182), (1078, 25986), (1281, 21868), (1342, 20874), (1491, 18788), (1562, 17934), (1617, 17324), (1708, 16401), (1988, 14091), (2013, 13916), (2156, 12993), (2343, 11956), (2562, 10934), (2684, 10437), (2982, 9394), (2989, 9372), (3124, 8967), (3234, 8662), (3479, 8052), (4026, 6958), (4331, 6468), (4686, 5978), (4697, 5964), (5124, 5467)]