81682560

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 256

約数和(自身を含む): 301104000

約数和(自身を除く): 219421440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 64, 72, 80, 87, 90, 96, 108, 116, 120, 128, 135, 144, 145, 160, 163, 174, 180, 192, 216, 232, 240, 261, 270, 288, 290, 320, 326, 348, 360, 384, 432, 435, 464, 480, 489, 522, 540, 576, 580, 640, 652, 696, 720, 783, 815, 864, 870, 928, 960, 978, 1044, 1080, 1152, 1160, 1304, 1305, 1392, 1440, 1467, 1566, 1630, 1728, 1740, 1856, 1920, 1956, 2088, 2160, 2320, 2445, 2608, 2610, 2784, 2880, 2934, 3132, 3260, 3456, 3480, 3712, 3912, 3915, 4176, 4320, 4401, 4640, 4727, 4890, 5216, 5220, 5568, 5760, 5868, 6264, 6520, 6960, 7335, 7824, 7830, 8352, 8640, 8802, 9280, 9454, 9780, 10432, 10440, 11136, 11736, 12528, 13040, 13920, 14181, 14670, 15648, 15660, 16704, 17280, 17604, 18560, 18908, 19560, 20864, 20880, 22005, 23472, 23635, 25056, 26080, 27840, 28362, 29340, 31296, 31320, 33408, 35208, 37816, 39120, 41760, 42543, 44010, 46944, 47270, 50112, 52160, 55680, 56724, 58680, 62592, 62640, 70416, 70905, 75632, 78240, 83520, 85086, 88020, 93888, 94540, 100224, 104320, 113448, 117360, 125280, 127629, 140832, 141810, 151264, 156480, 167040, 170172, 176040, 187776, 189080, 212715, 226896, 234720, 250560, 255258, 281664, 283620, 302528, 312960, 340344, 352080, 378160, 425430, 453792, 469440, 501120, 510516, 563328, 567240, 605056, 638145, 680688, 704160, 756320, 850860, 907584, 938880, 1021032, 1134480, 1276290, 1361376, 1408320, 1512640, 1701720, 1815168, 2042064, 2268960, 2552580, 2722752, 2816640, 3025280, 3403440, 4084128, 4537920, 5105160, 5445504, 6806880, 8168256, 9075840, 10210320, 13613760, 16336512, 20420640, 27227520, 40841280, 81682560]

約数ペア:

[(1, 81682560), (2, 40841280), (3, 27227520), (4, 20420640), (5, 16336512), (6, 13613760), (8, 10210320), (9, 9075840), (10, 8168256), (12, 6806880), (15, 5445504), (16, 5105160), (18, 4537920), (20, 4084128), (24, 3403440), (27, 3025280), (29, 2816640), (30, 2722752), (32, 2552580), (36, 2268960), (40, 2042064), (45, 1815168), (48, 1701720), (54, 1512640), (58, 1408320), (60, 1361376), (64, 1276290), (72, 1134480), (80, 1021032), (87, 938880), (90, 907584), (96, 850860), (108, 756320), (116, 704160), (120, 680688), (128, 638145), (135, 605056), (144, 567240), (145, 563328), (160, 510516), (163, 501120), (174, 469440), (180, 453792), (192, 425430), (216, 378160), (232, 352080), (240, 340344), (261, 312960), (270, 302528), (288, 283620), (290, 281664), (320, 255258), (326, 250560), (348, 234720), (360, 226896), (384, 212715), (432, 189080), (435, 187776), (464, 176040), (480, 170172), (489, 167040), (522, 156480), (540, 151264), (576, 141810), (580, 140832), (640, 127629), (652, 125280), (696, 117360), (720, 113448), (783, 104320), (815, 100224), (864, 94540), (870, 93888), (928, 88020), (960, 85086), (978, 83520), (1044, 78240), (1080, 75632), (1152, 70905), (1160, 70416), (1304, 62640), (1305, 62592), (1392, 58680), (1440, 56724), (1467, 55680), (1566, 52160), (1630, 50112), (1728, 47270), (1740, 46944), (1856, 44010), (1920, 42543), (1956, 41760), (2088, 39120), (2160, 37816), (2320, 35208), (2445, 33408), (2608, 31320), (2610, 31296), (2784, 29340), (2880, 28362), (2934, 27840), (3132, 26080), (3260, 25056), (3456, 23635), (3480, 23472), (3712, 22005), (3912, 20880), (3915, 20864), (4176, 19560), (4320, 18908), (4401, 18560), (4640, 17604), (4727, 17280), (4890, 16704), (5216, 15660), (5220, 15648), (5568, 14670), (5760, 14181), (5868, 13920), (6264, 13040), (6520, 12528), (6960, 11736), (7335, 11136), (7824, 10440), (7830, 10432), (8352, 9780), (8640, 9454), (8802, 9280)]