81084240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:168

約数の個数: 240

約数和(自身を含む): 291939648

約数和(自身を除く): 210855408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 81, 86, 90, 97, 108, 120, 129, 135, 144, 162, 172, 180, 194, 215, 216, 240, 243, 258, 270, 291, 324, 344, 360, 387, 388, 405, 430, 432, 485, 486, 516, 540, 582, 645, 648, 688, 720, 774, 776, 810, 860, 873, 970, 972, 1032, 1080, 1161, 1164, 1215, 1290, 1296, 1455, 1548, 1552, 1620, 1720, 1746, 1935, 1940, 1944, 2064, 2160, 2322, 2328, 2430, 2580, 2619, 2910, 3096, 3240, 3440, 3483, 3492, 3870, 3880, 3888, 4171, 4365, 4644, 4656, 4860, 5160, 5238, 5805, 5820, 6192, 6480, 6966, 6984, 7740, 7760, 7857, 8342, 8730, 9288, 9720, 10320, 10449, 10476, 11610, 11640, 12513, 13095, 13932, 13968, 15480, 15714, 16684, 17415, 17460, 18576, 19440, 20855, 20898, 20952, 23220, 23280, 23571, 25026, 26190, 27864, 30960, 31428, 33368, 34830, 34920, 37539, 39285, 41710, 41796, 41904, 46440, 47142, 50052, 52245, 52380, 55728, 62565, 62856, 66736, 69660, 69840, 75078, 78570, 83420, 83592, 92880, 94284, 100104, 104490, 104760, 112617, 117855, 125130, 125712, 139320, 150156, 157140, 166840, 167184, 187695, 188568, 200208, 208980, 209520, 225234, 235710, 250260, 278640, 300312, 314280, 333680, 337851, 375390, 377136, 417960, 450468, 471420, 500520, 563085, 600624, 628560, 675702, 750780, 835920, 900936, 942840, 1001040, 1013553, 1126170, 1351404, 1501560, 1689255, 1801872, 1885680, 2027106, 2252340, 2702808, 3003120, 3378510, 4054212, 4504680, 5067765, 5405616, 6757020, 8108424, 9009360, 10135530, 13514040, 16216848, 20271060, 27028080, 40542120, 81084240]

約数ペア:

[(1, 81084240), (2, 40542120), (3, 27028080), (4, 20271060), (5, 16216848), (6, 13514040), (8, 10135530), (9, 9009360), (10, 8108424), (12, 6757020), (15, 5405616), (16, 5067765), (18, 4504680), (20, 4054212), (24, 3378510), (27, 3003120), (30, 2702808), (36, 2252340), (40, 2027106), (43, 1885680), (45, 1801872), (48, 1689255), (54, 1501560), (60, 1351404), (72, 1126170), (80, 1013553), (81, 1001040), (86, 942840), (90, 900936), (97, 835920), (108, 750780), (120, 675702), (129, 628560), (135, 600624), (144, 563085), (162, 500520), (172, 471420), (180, 450468), (194, 417960), (215, 377136), (216, 375390), (240, 337851), (243, 333680), (258, 314280), (270, 300312), (291, 278640), (324, 250260), (344, 235710), (360, 225234), (387, 209520), (388, 208980), (405, 200208), (430, 188568), (432, 187695), (485, 167184), (486, 166840), (516, 157140), (540, 150156), (582, 139320), (645, 125712), (648, 125130), (688, 117855), (720, 112617), (774, 104760), (776, 104490), (810, 100104), (860, 94284), (873, 92880), (970, 83592), (972, 83420), (1032, 78570), (1080, 75078), (1161, 69840), (1164, 69660), (1215, 66736), (1290, 62856), (1296, 62565), (1455, 55728), (1548, 52380), (1552, 52245), (1620, 50052), (1720, 47142), (1746, 46440), (1935, 41904), (1940, 41796), (1944, 41710), (2064, 39285), (2160, 37539), (2322, 34920), (2328, 34830), (2430, 33368), (2580, 31428), (2619, 30960), (2910, 27864), (3096, 26190), (3240, 25026), (3440, 23571), (3483, 23280), (3492, 23220), (3870, 20952), (3880, 20898), (3888, 20855), (4171, 19440), (4365, 18576), (4644, 17460), (4656, 17415), (4860, 16684), (5160, 15714), (5238, 15480), (5805, 13968), (5820, 13932), (6192, 13095), (6480, 12513), (6966, 11640), (6984, 11610), (7740, 10476), (7760, 10449), (7857, 10320), (8342, 9720), (8730, 9288)]