81272576

素因数分解:

$2^8\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 216

約数和(自身を含む): 223695360

約数和(自身を除く): 142422784

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 31, 32, 38, 44, 49, 56, 62, 64, 76, 77, 88, 98, 112, 124, 128, 133, 152, 154, 176, 196, 209, 217, 224, 248, 256, 266, 304, 308, 341, 352, 392, 418, 434, 448, 496, 532, 539, 589, 608, 616, 682, 704, 784, 836, 868, 896, 931, 992, 1064, 1078, 1178, 1216, 1232, 1364, 1408, 1463, 1519, 1568, 1672, 1736, 1792, 1862, 1984, 2128, 2156, 2356, 2387, 2432, 2464, 2728, 2816, 2926, 3038, 3136, 3344, 3472, 3724, 3968, 4123, 4256, 4312, 4712, 4774, 4864, 4928, 5456, 5852, 6076, 6272, 6479, 6688, 6944, 7448, 7936, 8246, 8512, 8624, 9424, 9548, 9856, 10241, 10912, 11704, 12152, 12544, 12958, 13376, 13888, 14896, 16492, 16709, 17024, 17248, 18848, 19096, 19712, 20482, 21824, 23408, 24304, 25916, 26752, 27776, 28861, 29792, 32984, 33418, 34048, 34496, 37696, 38192, 40964, 43648, 45353, 46816, 48608, 51832, 53504, 55552, 57722, 59584, 65968, 66836, 68992, 75392, 76384, 81928, 87296, 90706, 93632, 97216, 103664, 115444, 119168, 131936, 133672, 137984, 150784, 152768, 163856, 181412, 187264, 194432, 207328, 230888, 238336, 263872, 267344, 305536, 317471, 327712, 362824, 374528, 388864, 414656, 461776, 527744, 534688, 611072, 634942, 655424, 725648, 829312, 923552, 1055488, 1069376, 1269884, 1310848, 1451296, 1658624, 1847104, 2138752, 2539768, 2621696, 2902592, 3694208, 4277504, 5079536, 5805184, 7388416, 10159072, 11610368, 20318144, 40636288, 81272576]

約数ペア:

[(1, 81272576), (2, 40636288), (4, 20318144), (7, 11610368), (8, 10159072), (11, 7388416), (14, 5805184), (16, 5079536), (19, 4277504), (22, 3694208), (28, 2902592), (31, 2621696), (32, 2539768), (38, 2138752), (44, 1847104), (49, 1658624), (56, 1451296), (62, 1310848), (64, 1269884), (76, 1069376), (77, 1055488), (88, 923552), (98, 829312), (112, 725648), (124, 655424), (128, 634942), (133, 611072), (152, 534688), (154, 527744), (176, 461776), (196, 414656), (209, 388864), (217, 374528), (224, 362824), (248, 327712), (256, 317471), (266, 305536), (304, 267344), (308, 263872), (341, 238336), (352, 230888), (392, 207328), (418, 194432), (434, 187264), (448, 181412), (496, 163856), (532, 152768), (539, 150784), (589, 137984), (608, 133672), (616, 131936), (682, 119168), (704, 115444), (784, 103664), (836, 97216), (868, 93632), (896, 90706), (931, 87296), (992, 81928), (1064, 76384), (1078, 75392), (1178, 68992), (1216, 66836), (1232, 65968), (1364, 59584), (1408, 57722), (1463, 55552), (1519, 53504), (1568, 51832), (1672, 48608), (1736, 46816), (1792, 45353), (1862, 43648), (1984, 40964), (2128, 38192), (2156, 37696), (2356, 34496), (2387, 34048), (2432, 33418), (2464, 32984), (2728, 29792), (2816, 28861), (2926, 27776), (3038, 26752), (3136, 25916), (3344, 24304), (3472, 23408), (3724, 21824), (3968, 20482), (4123, 19712), (4256, 19096), (4312, 18848), (4712, 17248), (4774, 17024), (4864, 16709), (4928, 16492), (5456, 14896), (5852, 13888), (6076, 13376), (6272, 12958), (6479, 12544), (6688, 12152), (6944, 11704), (7448, 10912), (7936, 10241), (8246, 9856), (8512, 9548), (8624, 9424)]