81122160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:575

約数の個数: 160

約数和(自身を含む): 290695680

約数和(自身を除く): 209573520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 120, 140, 168, 210, 218, 240, 280, 327, 336, 420, 436, 443, 545, 560, 654, 763, 840, 872, 886, 1090, 1308, 1329, 1526, 1635, 1680, 1744, 1772, 2180, 2215, 2289, 2616, 2658, 3052, 3101, 3270, 3544, 3815, 4360, 4430, 4578, 5232, 5316, 6104, 6202, 6540, 6645, 7088, 7630, 8720, 8860, 9156, 9303, 10632, 11445, 12208, 12404, 13080, 13290, 15260, 15505, 17720, 18312, 18606, 21264, 22890, 24808, 26160, 26580, 30520, 31010, 35440, 36624, 37212, 45780, 46515, 48287, 49616, 53160, 61040, 62020, 74424, 91560, 93030, 96574, 106320, 124040, 144861, 148848, 183120, 186060, 193148, 241435, 248080, 289722, 338009, 372120, 386296, 482870, 579444, 676018, 724305, 744240, 772592, 965740, 1014027, 1158888, 1352036, 1448610, 1690045, 1931480, 2028054, 2317776, 2704072, 2897220, 3380090, 3862960, 4056108, 5070135, 5408144, 5794440, 6760180, 8112216, 10140270, 11588880, 13520360, 16224432, 20280540, 27040720, 40561080, 81122160]

約数ペア:

[(1, 81122160), (2, 40561080), (3, 27040720), (4, 20280540), (5, 16224432), (6, 13520360), (7, 11588880), (8, 10140270), (10, 8112216), (12, 6760180), (14, 5794440), (15, 5408144), (16, 5070135), (20, 4056108), (21, 3862960), (24, 3380090), (28, 2897220), (30, 2704072), (35, 2317776), (40, 2028054), (42, 1931480), (48, 1690045), (56, 1448610), (60, 1352036), (70, 1158888), (80, 1014027), (84, 965740), (105, 772592), (109, 744240), (112, 724305), (120, 676018), (140, 579444), (168, 482870), (210, 386296), (218, 372120), (240, 338009), (280, 289722), (327, 248080), (336, 241435), (420, 193148), (436, 186060), (443, 183120), (545, 148848), (560, 144861), (654, 124040), (763, 106320), (840, 96574), (872, 93030), (886, 91560), (1090, 74424), (1308, 62020), (1329, 61040), (1526, 53160), (1635, 49616), (1680, 48287), (1744, 46515), (1772, 45780), (2180, 37212), (2215, 36624), (2289, 35440), (2616, 31010), (2658, 30520), (3052, 26580), (3101, 26160), (3270, 24808), (3544, 22890), (3815, 21264), (4360, 18606), (4430, 18312), (4578, 17720), (5232, 15505), (5316, 15260), (6104, 13290), (6202, 13080), (6540, 12404), (6645, 12208), (7088, 11445), (7630, 10632), (8720, 9303), (8860, 9156)]