27956880

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:115

約数の個数: 240

約数和(自身を含む): 112671360

約数和(自身を除く): 84714480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 43, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 86, 90, 105, 108, 112, 120, 126, 129, 135, 140, 144, 168, 172, 180, 189, 210, 215, 216, 240, 252, 258, 270, 280, 301, 315, 336, 344, 360, 378, 387, 420, 430, 432, 504, 516, 540, 560, 602, 630, 645, 688, 720, 756, 774, 840, 860, 903, 945, 1008, 1032, 1080, 1161, 1204, 1260, 1290, 1505, 1512, 1548, 1680, 1720, 1806, 1849, 1890, 1935, 2064, 2160, 2322, 2408, 2520, 2580, 2709, 3010, 3024, 3096, 3440, 3612, 3698, 3780, 3870, 4515, 4644, 4816, 5040, 5160, 5418, 5547, 5805, 6020, 6192, 7224, 7396, 7560, 7740, 8127, 9030, 9245, 9288, 10320, 10836, 11094, 11610, 12040, 12943, 13545, 14448, 14792, 15120, 15480, 16254, 16641, 18060, 18490, 18576, 21672, 22188, 23220, 24080, 25886, 27090, 27735, 29584, 30960, 32508, 33282, 36120, 36980, 38829, 40635, 43344, 44376, 46440, 49923, 51772, 54180, 55470, 64715, 65016, 66564, 72240, 73960, 77658, 81270, 83205, 88752, 92880, 99846, 103544, 108360, 110940, 116487, 129430, 130032, 133128, 147920, 155316, 162540, 166410, 194145, 199692, 207088, 216720, 221880, 232974, 249615, 258860, 266256, 310632, 325080, 332820, 349461, 388290, 399384, 443760, 465948, 499230, 517720, 582435, 621264, 650160, 665640, 698922, 776580, 798768, 931896, 998460, 1035440, 1164870, 1331280, 1397844, 1553160, 1747305, 1863792, 1996920, 2329740, 2795688, 3106320, 3494610, 3993840, 4659480, 5591376, 6989220, 9318960, 13978440, 27956880]

約数ペア:

[(1, 27956880), (2, 13978440), (3, 9318960), (4, 6989220), (5, 5591376), (6, 4659480), (7, 3993840), (8, 3494610), (9, 3106320), (10, 2795688), (12, 2329740), (14, 1996920), (15, 1863792), (16, 1747305), (18, 1553160), (20, 1397844), (21, 1331280), (24, 1164870), (27, 1035440), (28, 998460), (30, 931896), (35, 798768), (36, 776580), (40, 698922), (42, 665640), (43, 650160), (45, 621264), (48, 582435), (54, 517720), (56, 499230), (60, 465948), (63, 443760), (70, 399384), (72, 388290), (80, 349461), (84, 332820), (86, 325080), (90, 310632), (105, 266256), (108, 258860), (112, 249615), (120, 232974), (126, 221880), (129, 216720), (135, 207088), (140, 199692), (144, 194145), (168, 166410), (172, 162540), (180, 155316), (189, 147920), (210, 133128), (215, 130032), (216, 129430), (240, 116487), (252, 110940), (258, 108360), (270, 103544), (280, 99846), (301, 92880), (315, 88752), (336, 83205), (344, 81270), (360, 77658), (378, 73960), (387, 72240), (420, 66564), (430, 65016), (432, 64715), (504, 55470), (516, 54180), (540, 51772), (560, 49923), (602, 46440), (630, 44376), (645, 43344), (688, 40635), (720, 38829), (756, 36980), (774, 36120), (840, 33282), (860, 32508), (903, 30960), (945, 29584), (1008, 27735), (1032, 27090), (1080, 25886), (1161, 24080), (1204, 23220), (1260, 22188), (1290, 21672), (1505, 18576), (1512, 18490), (1548, 18060), (1680, 16641), (1720, 16254), (1806, 15480), (1849, 15120), (1890, 14792), (1935, 14448), (2064, 13545), (2160, 12943), (2322, 12040), (2408, 11610), (2520, 11094), (2580, 10836), (2709, 10320), (3010, 9288), (3024, 9245), (3096, 9030), (3440, 8127), (3612, 7740), (3698, 7560), (3780, 7396), (3870, 7224), (4515, 6192), (4644, 6020), (4816, 5805), (5040, 5547), (5160, 5418)]