81821376

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:268

約数の個数: 252

約数和(自身を含む): 295119552

約数和(自身を除く): 213298176

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 49, 52, 56, 63, 64, 72, 78, 84, 91, 96, 98, 104, 112, 117, 126, 144, 147, 156, 168, 182, 192, 196, 208, 223, 224, 234, 252, 273, 288, 294, 312, 336, 364, 392, 416, 441, 446, 448, 468, 504, 546, 576, 588, 624, 637, 669, 672, 728, 784, 819, 832, 882, 892, 936, 1008, 1092, 1176, 1248, 1274, 1338, 1344, 1456, 1561, 1568, 1638, 1764, 1784, 1872, 1911, 2007, 2016, 2184, 2352, 2496, 2548, 2676, 2899, 2912, 3122, 3136, 3276, 3528, 3568, 3744, 3822, 4014, 4032, 4368, 4683, 4704, 5096, 5352, 5733, 5798, 5824, 6244, 6552, 7056, 7136, 7488, 7644, 8028, 8697, 8736, 9366, 9408, 10192, 10704, 10927, 11466, 11596, 12488, 13104, 14049, 14112, 14272, 15288, 16056, 17394, 17472, 18732, 20293, 20384, 21408, 21854, 22932, 23192, 24976, 26091, 26208, 28098, 28224, 30576, 32112, 32781, 34788, 37464, 40586, 40768, 42816, 43708, 45864, 46384, 49952, 52182, 52416, 56196, 60879, 61152, 64224, 65562, 69576, 74928, 81172, 87416, 91728, 92768, 98343, 99904, 104364, 112392, 121758, 122304, 128448, 131124, 139152, 142051, 149856, 162344, 174832, 182637, 183456, 185536, 196686, 208728, 224784, 243516, 262248, 278304, 284102, 299712, 324688, 349664, 365274, 366912, 393372, 417456, 426153, 449568, 487032, 524496, 556608, 568204, 649376, 699328, 730548, 786744, 834912, 852306, 899136, 974064, 1048992, 1136408, 1278459, 1298752, 1461096, 1573488, 1669824, 1704612, 1948128, 2097984, 2272816, 2556918, 2922192, 3146976, 3409224, 3896256, 4545632, 5113836, 5844384, 6293952, 6818448, 9091264, 10227672, 11688768, 13636896, 20455344, 27273792, 40910688, 81821376]

約数ペア:

[(1, 81821376), (2, 40910688), (3, 27273792), (4, 20455344), (6, 13636896), (7, 11688768), (8, 10227672), (9, 9091264), (12, 6818448), (13, 6293952), (14, 5844384), (16, 5113836), (18, 4545632), (21, 3896256), (24, 3409224), (26, 3146976), (28, 2922192), (32, 2556918), (36, 2272816), (39, 2097984), (42, 1948128), (48, 1704612), (49, 1669824), (52, 1573488), (56, 1461096), (63, 1298752), (64, 1278459), (72, 1136408), (78, 1048992), (84, 974064), (91, 899136), (96, 852306), (98, 834912), (104, 786744), (112, 730548), (117, 699328), (126, 649376), (144, 568204), (147, 556608), (156, 524496), (168, 487032), (182, 449568), (192, 426153), (196, 417456), (208, 393372), (223, 366912), (224, 365274), (234, 349664), (252, 324688), (273, 299712), (288, 284102), (294, 278304), (312, 262248), (336, 243516), (364, 224784), (392, 208728), (416, 196686), (441, 185536), (446, 183456), (448, 182637), (468, 174832), (504, 162344), (546, 149856), (576, 142051), (588, 139152), (624, 131124), (637, 128448), (669, 122304), (672, 121758), (728, 112392), (784, 104364), (819, 99904), (832, 98343), (882, 92768), (892, 91728), (936, 87416), (1008, 81172), (1092, 74928), (1176, 69576), (1248, 65562), (1274, 64224), (1338, 61152), (1344, 60879), (1456, 56196), (1561, 52416), (1568, 52182), (1638, 49952), (1764, 46384), (1784, 45864), (1872, 43708), (1911, 42816), (2007, 40768), (2016, 40586), (2184, 37464), (2352, 34788), (2496, 32781), (2548, 32112), (2676, 30576), (2899, 28224), (2912, 28098), (3122, 26208), (3136, 26091), (3276, 24976), (3528, 23192), (3568, 22932), (3744, 21854), (3822, 21408), (4014, 20384), (4032, 20293), (4368, 18732), (4683, 17472), (4704, 17394), (5096, 16056), (5352, 15288), (5733, 14272), (5798, 14112), (5824, 14049), (6244, 13104), (6552, 12488), (7056, 11596), (7136, 11466), (7488, 10927), (7644, 10704), (8028, 10192), (8697, 9408), (8736, 9366)]