81803520

素因数分解:

$2^8\times 3^5\times 5^1\times {\mathrm{263}}^1$

素因数の和:299

約数の個数: 216

約数和(自身を含む): 294630336

約数和(自身を除く): 212826816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 263, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 526, 540, 576, 640, 648, 720, 768, 789, 810, 864, 960, 972, 1052, 1080, 1152, 1215, 1280, 1296, 1315, 1440, 1578, 1620, 1728, 1920, 1944, 2104, 2160, 2304, 2367, 2430, 2592, 2630, 2880, 3156, 3240, 3456, 3840, 3888, 3945, 4208, 4320, 4734, 4860, 5184, 5260, 5760, 6312, 6480, 6912, 7101, 7776, 7890, 8416, 8640, 9468, 9720, 10368, 10520, 11520, 11835, 12624, 12960, 14202, 15552, 15780, 16832, 17280, 18936, 19440, 20736, 21040, 21303, 23670, 25248, 25920, 28404, 31104, 31560, 33664, 34560, 35505, 37872, 38880, 42080, 42606, 47340, 50496, 51840, 56808, 62208, 63120, 63909, 67328, 71010, 75744, 77760, 84160, 85212, 94680, 100992, 103680, 106515, 113616, 126240, 127818, 142020, 151488, 155520, 168320, 170424, 189360, 201984, 213030, 227232, 252480, 255636, 284040, 302976, 311040, 319545, 336640, 340848, 378720, 426060, 454464, 504960, 511272, 568080, 605952, 639090, 681696, 757440, 852120, 908928, 1009920, 1022544, 1136160, 1278180, 1363392, 1514880, 1704240, 1817856, 2045088, 2272320, 2556360, 2726784, 3029760, 3408480, 4090176, 4544640, 5112720, 5453568, 6816960, 8180352, 9089280, 10225440, 13633920, 16360704, 20450880, 27267840, 40901760, 81803520]

約数ペア:

[(1, 81803520), (2, 40901760), (3, 27267840), (4, 20450880), (5, 16360704), (6, 13633920), (8, 10225440), (9, 9089280), (10, 8180352), (12, 6816960), (15, 5453568), (16, 5112720), (18, 4544640), (20, 4090176), (24, 3408480), (27, 3029760), (30, 2726784), (32, 2556360), (36, 2272320), (40, 2045088), (45, 1817856), (48, 1704240), (54, 1514880), (60, 1363392), (64, 1278180), (72, 1136160), (80, 1022544), (81, 1009920), (90, 908928), (96, 852120), (108, 757440), (120, 681696), (128, 639090), (135, 605952), (144, 568080), (160, 511272), (162, 504960), (180, 454464), (192, 426060), (216, 378720), (240, 340848), (243, 336640), (256, 319545), (263, 311040), (270, 302976), (288, 284040), (320, 255636), (324, 252480), (360, 227232), (384, 213030), (405, 201984), (432, 189360), (480, 170424), (486, 168320), (526, 155520), (540, 151488), (576, 142020), (640, 127818), (648, 126240), (720, 113616), (768, 106515), (789, 103680), (810, 100992), (864, 94680), (960, 85212), (972, 84160), (1052, 77760), (1080, 75744), (1152, 71010), (1215, 67328), (1280, 63909), (1296, 63120), (1315, 62208), (1440, 56808), (1578, 51840), (1620, 50496), (1728, 47340), (1920, 42606), (1944, 42080), (2104, 38880), (2160, 37872), (2304, 35505), (2367, 34560), (2430, 33664), (2592, 31560), (2630, 31104), (2880, 28404), (3156, 25920), (3240, 25248), (3456, 23670), (3840, 21303), (3888, 21040), (3945, 20736), (4208, 19440), (4320, 18936), (4734, 17280), (4860, 16832), (5184, 15780), (5260, 15552), (5760, 14202), (6312, 12960), (6480, 12624), (6912, 11835), (7101, 11520), (7776, 10520), (7890, 10368), (8416, 9720), (8640, 9468)]