81009760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 228614400

約数和(自身を除く): 147604640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 29, 32, 34, 40, 52, 58, 65, 68, 79, 80, 85, 104, 116, 130, 136, 145, 158, 160, 170, 208, 221, 232, 260, 272, 290, 316, 340, 377, 395, 416, 442, 464, 493, 520, 544, 580, 632, 680, 754, 790, 884, 928, 986, 1027, 1040, 1105, 1160, 1264, 1343, 1360, 1508, 1580, 1768, 1885, 1972, 2054, 2080, 2210, 2291, 2320, 2465, 2528, 2686, 2720, 3016, 3160, 3536, 3770, 3944, 4108, 4420, 4582, 4640, 4930, 5135, 5372, 6032, 6320, 6409, 6715, 7072, 7540, 7888, 8216, 8840, 9164, 9860, 10270, 10744, 11455, 12064, 12640, 12818, 13430, 15080, 15776, 16432, 17459, 17680, 18328, 19720, 20540, 21488, 22910, 25636, 26860, 29783, 30160, 32045, 32864, 34918, 35360, 36656, 38947, 39440, 41080, 42976, 45820, 51272, 53720, 59566, 60320, 64090, 69836, 73312, 77894, 78880, 82160, 87295, 91640, 102544, 107440, 119132, 128180, 139672, 148915, 155788, 164320, 174590, 183280, 194735, 205088, 214880, 238264, 256360, 279344, 297830, 311576, 349180, 366560, 389470, 476528, 506311, 512720, 558688, 595660, 623152, 698360, 778940, 953056, 1012622, 1025440, 1191320, 1246304, 1396720, 1557880, 2025244, 2382640, 2531555, 2793440, 3115760, 4050488, 4765280, 5063110, 6231520, 8100976, 10126220, 16201952, 20252440, 40504880, 81009760]

約数ペア:

[(1, 81009760), (2, 40504880), (4, 20252440), (5, 16201952), (8, 10126220), (10, 8100976), (13, 6231520), (16, 5063110), (17, 4765280), (20, 4050488), (26, 3115760), (29, 2793440), (32, 2531555), (34, 2382640), (40, 2025244), (52, 1557880), (58, 1396720), (65, 1246304), (68, 1191320), (79, 1025440), (80, 1012622), (85, 953056), (104, 778940), (116, 698360), (130, 623152), (136, 595660), (145, 558688), (158, 512720), (160, 506311), (170, 476528), (208, 389470), (221, 366560), (232, 349180), (260, 311576), (272, 297830), (290, 279344), (316, 256360), (340, 238264), (377, 214880), (395, 205088), (416, 194735), (442, 183280), (464, 174590), (493, 164320), (520, 155788), (544, 148915), (580, 139672), (632, 128180), (680, 119132), (754, 107440), (790, 102544), (884, 91640), (928, 87295), (986, 82160), (1027, 78880), (1040, 77894), (1105, 73312), (1160, 69836), (1264, 64090), (1343, 60320), (1360, 59566), (1508, 53720), (1580, 51272), (1768, 45820), (1885, 42976), (1972, 41080), (2054, 39440), (2080, 38947), (2210, 36656), (2291, 35360), (2320, 34918), (2465, 32864), (2528, 32045), (2686, 30160), (2720, 29783), (3016, 26860), (3160, 25636), (3536, 22910), (3770, 21488), (3944, 20540), (4108, 19720), (4420, 18328), (4582, 17680), (4640, 17459), (4930, 16432), (5135, 15776), (5372, 15080), (6032, 13430), (6320, 12818), (6409, 12640), (6715, 12064), (7072, 11455), (7540, 10744), (7888, 10270), (8216, 9860), (8840, 9164)]