81606756

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 258117888

約数和(自身を除く): 176511132

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 31, 33, 37, 42, 44, 49, 62, 66, 74, 77, 84, 93, 98, 111, 121, 124, 132, 147, 148, 154, 186, 196, 217, 222, 231, 242, 259, 294, 308, 341, 363, 372, 407, 434, 444, 462, 484, 518, 539, 588, 651, 682, 726, 777, 814, 847, 868, 924, 1023, 1036, 1078, 1147, 1221, 1302, 1364, 1452, 1519, 1554, 1617, 1628, 1694, 1813, 2046, 2156, 2294, 2387, 2442, 2541, 2604, 2849, 3038, 3108, 3234, 3388, 3441, 3626, 3751, 4092, 4477, 4557, 4588, 4774, 4884, 5082, 5439, 5698, 5929, 6076, 6468, 6882, 7161, 7252, 7502, 8029, 8547, 8954, 9114, 9548, 10164, 10878, 11253, 11396, 11858, 12617, 13431, 13764, 14322, 15004, 16058, 16709, 17094, 17787, 17908, 18228, 19943, 21756, 22506, 23716, 24087, 25234, 26257, 26862, 28644, 31339, 32116, 33418, 34188, 35574, 37851, 39886, 45012, 48174, 50127, 50468, 52514, 53724, 56203, 59829, 62678, 66836, 71148, 75702, 78771, 79772, 88319, 94017, 96348, 100254, 105028, 112406, 119658, 125356, 138787, 151404, 157542, 168609, 176638, 183799, 188034, 200508, 219373, 224812, 239316, 264957, 277574, 315084, 337218, 353276, 367598, 376068, 416361, 438746, 529914, 551397, 555148, 618233, 658119, 674436, 735196, 832722, 877492, 971509, 1059828, 1102794, 1236466, 1316238, 1665444, 1854699, 1943018, 2205588, 2472932, 2632476, 2914527, 3709398, 3886036, 5829054, 6800563, 7418796, 11658108, 13601126, 20401689, 27202252, 40803378, 81606756]

約数ペア:

[(1, 81606756), (2, 40803378), (3, 27202252), (4, 20401689), (6, 13601126), (7, 11658108), (11, 7418796), (12, 6800563), (14, 5829054), (21, 3886036), (22, 3709398), (28, 2914527), (31, 2632476), (33, 2472932), (37, 2205588), (42, 1943018), (44, 1854699), (49, 1665444), (62, 1316238), (66, 1236466), (74, 1102794), (77, 1059828), (84, 971509), (93, 877492), (98, 832722), (111, 735196), (121, 674436), (124, 658119), (132, 618233), (147, 555148), (148, 551397), (154, 529914), (186, 438746), (196, 416361), (217, 376068), (222, 367598), (231, 353276), (242, 337218), (259, 315084), (294, 277574), (308, 264957), (341, 239316), (363, 224812), (372, 219373), (407, 200508), (434, 188034), (444, 183799), (462, 176638), (484, 168609), (518, 157542), (539, 151404), (588, 138787), (651, 125356), (682, 119658), (726, 112406), (777, 105028), (814, 100254), (847, 96348), (868, 94017), (924, 88319), (1023, 79772), (1036, 78771), (1078, 75702), (1147, 71148), (1221, 66836), (1302, 62678), (1364, 59829), (1452, 56203), (1519, 53724), (1554, 52514), (1617, 50468), (1628, 50127), (1694, 48174), (1813, 45012), (2046, 39886), (2156, 37851), (2294, 35574), (2387, 34188), (2442, 33418), (2541, 32116), (2604, 31339), (2849, 28644), (3038, 26862), (3108, 26257), (3234, 25234), (3388, 24087), (3441, 23716), (3626, 22506), (3751, 21756), (4092, 19943), (4477, 18228), (4557, 17908), (4588, 17787), (4774, 17094), (4884, 16709), (5082, 16058), (5439, 15004), (5698, 14322), (5929, 13764), (6076, 13431), (6468, 12617), (6882, 11858), (7161, 11396), (7252, 11253), (7502, 10878), (8029, 10164), (8547, 9548), (8954, 9114)]