217262880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 216

約数和(自身を含む): 770977116

約数和(自身を除く): 553714236

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 157, 160, 180, 186, 240, 248, 279, 288, 310, 314, 360, 372, 465, 471, 480, 496, 558, 620, 628, 720, 744, 785, 930, 942, 961, 992, 1116, 1240, 1256, 1395, 1413, 1440, 1488, 1570, 1860, 1884, 1922, 2232, 2355, 2480, 2512, 2790, 2826, 2883, 2976, 3140, 3720, 3768, 3844, 4464, 4710, 4805, 4867, 4960, 5024, 5580, 5652, 5766, 6280, 7065, 7440, 7536, 7688, 8649, 8928, 9420, 9610, 9734, 11160, 11304, 11532, 12560, 14130, 14415, 14601, 14880, 15072, 15376, 17298, 18840, 19220, 19468, 22320, 22608, 23064, 24335, 25120, 28260, 28830, 29202, 30752, 34596, 37680, 38440, 38936, 43245, 43803, 44640, 45216, 46128, 48670, 56520, 57660, 58404, 69192, 73005, 75360, 76880, 77872, 86490, 87606, 92256, 97340, 113040, 115320, 116808, 138384, 146010, 150877, 153760, 155744, 172980, 175212, 194680, 219015, 226080, 230640, 233616, 276768, 292020, 301754, 345960, 350424, 389360, 438030, 452631, 461280, 467232, 584040, 603508, 691920, 700848, 754385, 778720, 876060, 905262, 1168080, 1207016, 1357893, 1383840, 1401696, 1508770, 1752120, 1810524, 2263155, 2336160, 2414032, 2715786, 3017540, 3504240, 3621048, 4526310, 4828064, 5431572, 6035080, 6789465, 7008480, 7242096, 9052620, 10863144, 12070160, 13578930, 14484192, 18105240, 21726288, 24140320, 27157860, 36210480, 43452576, 54315720, 72420960, 108631440, 217262880]

約数ペア:

[(1, 217262880), (2, 108631440), (3, 72420960), (4, 54315720), (5, 43452576), (6, 36210480), (8, 27157860), (9, 24140320), (10, 21726288), (12, 18105240), (15, 14484192), (16, 13578930), (18, 12070160), (20, 10863144), (24, 9052620), (30, 7242096), (31, 7008480), (32, 6789465), (36, 6035080), (40, 5431572), (45, 4828064), (48, 4526310), (60, 3621048), (62, 3504240), (72, 3017540), (80, 2715786), (90, 2414032), (93, 2336160), (96, 2263155), (120, 1810524), (124, 1752120), (144, 1508770), (155, 1401696), (157, 1383840), (160, 1357893), (180, 1207016), (186, 1168080), (240, 905262), (248, 876060), (279, 778720), (288, 754385), (310, 700848), (314, 691920), (360, 603508), (372, 584040), (465, 467232), (471, 461280), (480, 452631), (496, 438030), (558, 389360), (620, 350424), (628, 345960), (720, 301754), (744, 292020), (785, 276768), (930, 233616), (942, 230640), (961, 226080), (992, 219015), (1116, 194680), (1240, 175212), (1256, 172980), (1395, 155744), (1413, 153760), (1440, 150877), (1488, 146010), (1570, 138384), (1860, 116808), (1884, 115320), (1922, 113040), (2232, 97340), (2355, 92256), (2480, 87606), (2512, 86490), (2790, 77872), (2826, 76880), (2883, 75360), (2976, 73005), (3140, 69192), (3720, 58404), (3768, 57660), (3844, 56520), (4464, 48670), (4710, 46128), (4805, 45216), (4867, 44640), (4960, 43803), (5024, 43245), (5580, 38936), (5652, 38440), (5766, 37680), (6280, 34596), (7065, 30752), (7440, 29202), (7536, 28830), (7688, 28260), (8649, 25120), (8928, 24335), (9420, 23064), (9610, 22608), (9734, 22320), (11160, 19468), (11304, 19220), (11532, 18840), (12560, 17298), (14130, 15376), (14415, 15072), (14601, 14880)]