81636720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1$

素因数の和:168

約数の個数: 240

約数和(自身を含む): 296016768

約数和(自身を除く): 214380048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 107, 110, 120, 132, 136, 165, 170, 176, 187, 204, 214, 220, 240, 255, 264, 272, 289, 321, 330, 340, 374, 408, 428, 440, 510, 528, 535, 561, 578, 642, 660, 680, 748, 816, 856, 867, 880, 935, 1020, 1070, 1122, 1156, 1177, 1284, 1320, 1360, 1445, 1496, 1605, 1712, 1734, 1819, 1870, 2040, 2140, 2244, 2312, 2354, 2568, 2640, 2805, 2890, 2992, 3179, 3210, 3468, 3531, 3638, 3740, 4080, 4280, 4335, 4488, 4624, 4708, 5136, 5457, 5610, 5780, 5885, 6358, 6420, 6936, 7062, 7276, 7480, 8560, 8670, 8976, 9095, 9416, 9537, 10914, 11220, 11560, 11770, 12716, 12840, 13872, 14124, 14552, 14960, 15895, 17340, 17655, 18190, 18832, 19074, 20009, 21828, 22440, 23120, 23540, 25432, 25680, 27285, 28248, 29104, 30923, 31790, 34680, 35310, 36380, 38148, 40018, 43656, 44880, 47080, 47685, 50864, 54570, 56496, 60027, 61846, 63580, 69360, 70620, 72760, 76296, 80036, 87312, 92769, 94160, 95370, 100045, 109140, 120054, 123692, 127160, 141240, 145520, 152592, 154615, 160072, 185538, 190740, 200090, 218280, 240108, 247384, 254320, 282480, 300135, 309230, 320144, 340153, 371076, 381480, 400180, 436560, 463845, 480216, 494768, 600270, 618460, 680306, 742152, 762960, 800360, 927690, 960432, 1020459, 1200540, 1236920, 1360612, 1484304, 1600720, 1700765, 1855380, 2040918, 2401080, 2473840, 2721224, 3401530, 3710760, 4081836, 4802160, 5102295, 5442448, 6803060, 7421520, 8163672, 10204590, 13606120, 16327344, 20409180, 27212240, 40818360, 81636720]

約数ペア:

[(1, 81636720), (2, 40818360), (3, 27212240), (4, 20409180), (5, 16327344), (6, 13606120), (8, 10204590), (10, 8163672), (11, 7421520), (12, 6803060), (15, 5442448), (16, 5102295), (17, 4802160), (20, 4081836), (22, 3710760), (24, 3401530), (30, 2721224), (33, 2473840), (34, 2401080), (40, 2040918), (44, 1855380), (48, 1700765), (51, 1600720), (55, 1484304), (60, 1360612), (66, 1236920), (68, 1200540), (80, 1020459), (85, 960432), (88, 927690), (102, 800360), (107, 762960), (110, 742152), (120, 680306), (132, 618460), (136, 600270), (165, 494768), (170, 480216), (176, 463845), (187, 436560), (204, 400180), (214, 381480), (220, 371076), (240, 340153), (255, 320144), (264, 309230), (272, 300135), (289, 282480), (321, 254320), (330, 247384), (340, 240108), (374, 218280), (408, 200090), (428, 190740), (440, 185538), (510, 160072), (528, 154615), (535, 152592), (561, 145520), (578, 141240), (642, 127160), (660, 123692), (680, 120054), (748, 109140), (816, 100045), (856, 95370), (867, 94160), (880, 92769), (935, 87312), (1020, 80036), (1070, 76296), (1122, 72760), (1156, 70620), (1177, 69360), (1284, 63580), (1320, 61846), (1360, 60027), (1445, 56496), (1496, 54570), (1605, 50864), (1712, 47685), (1734, 47080), (1819, 44880), (1870, 43656), (2040, 40018), (2140, 38148), (2244, 36380), (2312, 35310), (2354, 34680), (2568, 31790), (2640, 30923), (2805, 29104), (2890, 28248), (2992, 27285), (3179, 25680), (3210, 25432), (3468, 23540), (3531, 23120), (3638, 22440), (3740, 21828), (4080, 20009), (4280, 19074), (4335, 18832), (4488, 18190), (4624, 17655), (4708, 17340), (5136, 15895), (5457, 14960), (5610, 14552), (5780, 14124), (5885, 13872), (6358, 12840), (6420, 12716), (6936, 11770), (7062, 11560), (7276, 11220), (7480, 10914), (8560, 9537), (8670, 9416), (8976, 9095)]