281995560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3391}}^1$

素因数の和:3429

約数の個数: 256

約数和(自身を含む): 1172275200

約数和(自身を除く): 890279640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 770, 792, 840, 924, 945, 990, 1080, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1540, 1848, 1890, 1980, 2079, 2310, 2376, 2520, 2772, 2970, 3080, 3391, 3465, 3780, 3960, 4158, 4620, 5544, 5940, 6782, 6930, 7560, 8316, 9240, 10173, 10395, 11880, 13564, 13860, 16632, 16955, 20346, 20790, 23737, 27128, 27720, 30519, 33910, 37301, 40692, 41580, 47474, 50865, 61038, 67820, 71211, 74602, 81384, 83160, 91557, 94948, 101730, 111903, 118685, 122076, 135640, 142422, 149204, 152595, 183114, 186505, 189896, 203460, 213633, 223806, 237370, 244152, 261107, 284844, 298408, 305190, 335709, 356055, 366228, 373010, 406920, 427266, 447612, 457785, 474740, 522214, 559515, 569688, 610380, 640899, 671418, 712110, 732456, 746020, 783321, 854532, 895224, 915570, 949480, 1007127, 1044428, 1068165, 1119030, 1220760, 1281798, 1305535, 1342836, 1424220, 1492040, 1566642, 1678545, 1709064, 1831140, 2014254, 2088856, 2136330, 2238060, 2349963, 2563596, 2611070, 2685672, 2848440, 3133284, 3204495, 3357090, 3662280, 3916605, 4028508, 4272660, 4476120, 4699926, 5035635, 5127192, 5222140, 6266568, 6408990, 6714180, 7049889, 7833210, 8057016, 8545320, 9399852, 10071270, 10444280, 11749815, 12817980, 13428360, 14099778, 15666420, 18799704, 20142540, 23499630, 25635960, 28199556, 31332840, 35249445, 40285080, 46999260, 56399112, 70498890, 93998520, 140997780, 281995560]

約数ペア:

[(1, 281995560), (2, 140997780), (3, 93998520), (4, 70498890), (5, 56399112), (6, 46999260), (7, 40285080), (8, 35249445), (9, 31332840), (10, 28199556), (11, 25635960), (12, 23499630), (14, 20142540), (15, 18799704), (18, 15666420), (20, 14099778), (21, 13428360), (22, 12817980), (24, 11749815), (27, 10444280), (28, 10071270), (30, 9399852), (33, 8545320), (35, 8057016), (36, 7833210), (40, 7049889), (42, 6714180), (44, 6408990), (45, 6266568), (54, 5222140), (55, 5127192), (56, 5035635), (60, 4699926), (63, 4476120), (66, 4272660), (70, 4028508), (72, 3916605), (77, 3662280), (84, 3357090), (88, 3204495), (90, 3133284), (99, 2848440), (105, 2685672), (108, 2611070), (110, 2563596), (120, 2349963), (126, 2238060), (132, 2136330), (135, 2088856), (140, 2014254), (154, 1831140), (165, 1709064), (168, 1678545), (180, 1566642), (189, 1492040), (198, 1424220), (210, 1342836), (216, 1305535), (220, 1281798), (231, 1220760), (252, 1119030), (264, 1068165), (270, 1044428), (280, 1007127), (297, 949480), (308, 915570), (315, 895224), (330, 854532), (360, 783321), (378, 746020), (385, 732456), (396, 712110), (420, 671418), (440, 640899), (462, 610380), (495, 569688), (504, 559515), (540, 522214), (594, 474740), (616, 457785), (630, 447612), (660, 427266), (693, 406920), (756, 373010), (770, 366228), (792, 356055), (840, 335709), (924, 305190), (945, 298408), (990, 284844), (1080, 261107), (1155, 244152), (1188, 237370), (1260, 223806), (1320, 213633), (1386, 203460), (1485, 189896), (1512, 186505), (1540, 183114), (1848, 152595), (1890, 149204), (1980, 142422), (2079, 135640), (2310, 122076), (2376, 118685), (2520, 111903), (2772, 101730), (2970, 94948), (3080, 91557), (3391, 83160), (3465, 81384), (3780, 74602), (3960, 71211), (4158, 67820), (4620, 61038), (5544, 50865), (5940, 47474), (6782, 41580), (6930, 40692), (7560, 37301), (8316, 33910), (9240, 30519), (10173, 27720), (10395, 27128), (11880, 23737), (13564, 20790), (13860, 20346), (16632, 16955)]