81669840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:477

約数の個数: 160

約数和(自身を含む): 292052736

約数和(自身を除く): 210382896

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, 112, 120, 140, 168, 173, 210, 240, 280, 281, 336, 346, 420, 519, 560, 562, 692, 840, 843, 865, 1038, 1124, 1211, 1384, 1405, 1680, 1686, 1730, 1967, 2076, 2248, 2422, 2595, 2768, 2810, 3372, 3460, 3633, 3934, 4152, 4215, 4496, 4844, 5190, 5620, 5901, 6055, 6744, 6920, 7266, 7868, 8304, 8430, 9688, 9835, 10380, 11240, 11802, 12110, 13488, 13840, 14532, 15736, 16860, 18165, 19376, 19670, 20760, 22480, 23604, 24220, 29064, 29505, 31472, 33720, 36330, 39340, 41520, 47208, 48440, 48613, 58128, 59010, 67440, 72660, 78680, 94416, 96880, 97226, 118020, 145320, 145839, 157360, 194452, 236040, 243065, 290640, 291678, 340291, 388904, 472080, 486130, 583356, 680582, 729195, 777808, 972260, 1020873, 1166712, 1361164, 1458390, 1701455, 1944520, 2041746, 2333424, 2722328, 2916780, 3402910, 3889040, 4083492, 5104365, 5444656, 5833560, 6805820, 8166984, 10208730, 11667120, 13611640, 16333968, 20417460, 27223280, 40834920, 81669840]

約数ペア:

[(1, 81669840), (2, 40834920), (3, 27223280), (4, 20417460), (5, 16333968), (6, 13611640), (7, 11667120), (8, 10208730), (10, 8166984), (12, 6805820), (14, 5833560), (15, 5444656), (16, 5104365), (20, 4083492), (21, 3889040), (24, 3402910), (28, 2916780), (30, 2722328), (35, 2333424), (40, 2041746), (42, 1944520), (48, 1701455), (56, 1458390), (60, 1361164), (70, 1166712), (80, 1020873), (84, 972260), (105, 777808), (112, 729195), (120, 680582), (140, 583356), (168, 486130), (173, 472080), (210, 388904), (240, 340291), (280, 291678), (281, 290640), (336, 243065), (346, 236040), (420, 194452), (519, 157360), (560, 145839), (562, 145320), (692, 118020), (840, 97226), (843, 96880), (865, 94416), (1038, 78680), (1124, 72660), (1211, 67440), (1384, 59010), (1405, 58128), (1680, 48613), (1686, 48440), (1730, 47208), (1967, 41520), (2076, 39340), (2248, 36330), (2422, 33720), (2595, 31472), (2768, 29505), (2810, 29064), (3372, 24220), (3460, 23604), (3633, 22480), (3934, 20760), (4152, 19670), (4215, 19376), (4496, 18165), (4844, 16860), (5190, 15736), (5620, 14532), (5901, 13840), (6055, 13488), (6744, 12110), (6920, 11802), (7266, 11240), (7868, 10380), (8304, 9835), (8430, 9688)]