28281960

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 320

約数和(自身を含む): 114998400

約数和(自身を除く): 86716440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 29, 30, 35, 36, 40, 42, 43, 45, 54, 56, 58, 60, 63, 70, 72, 81, 84, 86, 87, 90, 105, 108, 116, 120, 126, 129, 135, 140, 145, 162, 168, 172, 174, 180, 189, 203, 210, 215, 216, 232, 252, 258, 261, 270, 280, 290, 301, 315, 324, 344, 348, 360, 378, 387, 405, 406, 420, 430, 435, 504, 516, 522, 540, 567, 580, 602, 609, 630, 645, 648, 696, 756, 774, 783, 810, 812, 840, 860, 870, 903, 945, 1015, 1032, 1044, 1080, 1134, 1160, 1161, 1204, 1218, 1247, 1260, 1290, 1305, 1505, 1512, 1548, 1566, 1620, 1624, 1720, 1740, 1806, 1827, 1890, 1935, 2030, 2088, 2268, 2322, 2349, 2408, 2436, 2494, 2520, 2580, 2610, 2709, 2835, 3010, 3045, 3096, 3132, 3240, 3480, 3483, 3612, 3654, 3741, 3780, 3870, 3915, 4060, 4515, 4536, 4644, 4698, 4872, 4988, 5160, 5220, 5418, 5481, 5670, 5805, 6020, 6090, 6235, 6264, 6966, 7224, 7308, 7482, 7560, 7740, 7830, 8120, 8127, 8729, 9030, 9135, 9288, 9396, 9976, 10440, 10836, 10962, 11223, 11340, 11610, 11745, 12040, 12180, 12470, 13545, 13932, 14616, 14964, 15480, 15660, 16254, 16443, 17415, 17458, 18060, 18270, 18705, 18792, 21672, 21924, 22446, 22680, 23220, 23490, 24360, 24381, 24940, 26187, 27090, 27405, 27864, 29928, 31320, 32508, 32886, 33669, 34830, 34916, 36120, 36540, 37410, 40635, 43645, 43848, 44892, 46440, 46980, 48762, 49880, 52374, 54180, 54810, 56115, 65016, 65772, 67338, 69660, 69832, 73080, 74820, 78561, 81270, 82215, 87290, 89784, 93960, 97524, 101007, 104748, 108360, 109620, 112230, 121905, 130935, 131544, 134676, 139320, 149640, 157122, 162540, 164430, 168345, 174580, 195048, 202014, 209496, 219240, 224460, 235683, 243810, 261870, 269352, 314244, 325080, 328860, 336690, 349160, 392805, 404028, 448920, 471366, 487620, 505035, 523740, 628488, 657720, 673380, 707049, 785610, 808056, 942732, 975240, 1010070, 1047480, 1178415, 1346760, 1414098, 1571220, 1885464, 2020140, 2356830, 2828196, 3142440, 3535245, 4040280, 4713660, 5656392, 7070490, 9427320, 14140980, 28281960]

約数ペア:

[(1, 28281960), (2, 14140980), (3, 9427320), (4, 7070490), (5, 5656392), (6, 4713660), (7, 4040280), (8, 3535245), (9, 3142440), (10, 2828196), (12, 2356830), (14, 2020140), (15, 1885464), (18, 1571220), (20, 1414098), (21, 1346760), (24, 1178415), (27, 1047480), (28, 1010070), (29, 975240), (30, 942732), (35, 808056), (36, 785610), (40, 707049), (42, 673380), (43, 657720), (45, 628488), (54, 523740), (56, 505035), (58, 487620), (60, 471366), (63, 448920), (70, 404028), (72, 392805), (81, 349160), (84, 336690), (86, 328860), (87, 325080), (90, 314244), (105, 269352), (108, 261870), (116, 243810), (120, 235683), (126, 224460), (129, 219240), (135, 209496), (140, 202014), (145, 195048), (162, 174580), (168, 168345), (172, 164430), (174, 162540), (180, 157122), (189, 149640), (203, 139320), (210, 134676), (215, 131544), (216, 130935), (232, 121905), (252, 112230), (258, 109620), (261, 108360), (270, 104748), (280, 101007), (290, 97524), (301, 93960), (315, 89784), (324, 87290), (344, 82215), (348, 81270), (360, 78561), (378, 74820), (387, 73080), (405, 69832), (406, 69660), (420, 67338), (430, 65772), (435, 65016), (504, 56115), (516, 54810), (522, 54180), (540, 52374), (567, 49880), (580, 48762), (602, 46980), (609, 46440), (630, 44892), (645, 43848), (648, 43645), (696, 40635), (756, 37410), (774, 36540), (783, 36120), (810, 34916), (812, 34830), (840, 33669), (860, 32886), (870, 32508), (903, 31320), (945, 29928), (1015, 27864), (1032, 27405), (1044, 27090), (1080, 26187), (1134, 24940), (1160, 24381), (1161, 24360), (1204, 23490), (1218, 23220), (1247, 22680), (1260, 22446), (1290, 21924), (1305, 21672), (1505, 18792), (1512, 18705), (1548, 18270), (1566, 18060), (1620, 17458), (1624, 17415), (1720, 16443), (1740, 16254), (1806, 15660), (1827, 15480), (1890, 14964), (1935, 14616), (2030, 13932), (2088, 13545), (2268, 12470), (2322, 12180), (2349, 12040), (2408, 11745), (2436, 11610), (2494, 11340), (2520, 11223), (2580, 10962), (2610, 10836), (2709, 10440), (2835, 9976), (3010, 9396), (3045, 9288), (3096, 9135), (3132, 9030), (3240, 8729), (3480, 8127), (3483, 8120), (3612, 7830), (3654, 7740), (3741, 7560), (3780, 7482), (3870, 7308), (3915, 7224), (4060, 6966), (4515, 6264), (4536, 6235), (4644, 6090), (4698, 6020), (4872, 5805), (4988, 5670), (5160, 5481), (5220, 5418)]