28128840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 89424000

約数和(自身を除く): 61295160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 59, 60, 87, 116, 118, 120, 137, 145, 174, 177, 232, 236, 274, 290, 295, 348, 354, 411, 435, 472, 548, 580, 590, 685, 696, 708, 822, 870, 885, 1096, 1160, 1180, 1370, 1416, 1644, 1711, 1740, 1770, 2055, 2360, 2740, 3288, 3422, 3480, 3540, 3973, 4110, 5133, 5480, 6844, 7080, 7946, 8083, 8220, 8555, 10266, 11919, 13688, 15892, 16166, 16440, 17110, 19865, 20532, 23838, 24249, 25665, 31784, 32332, 34220, 39730, 40415, 41064, 47676, 48498, 51330, 59595, 64664, 68440, 79460, 80830, 95352, 96996, 102660, 119190, 121245, 158920, 161660, 193992, 205320, 234407, 238380, 242490, 323320, 468814, 476760, 484980, 703221, 937628, 969960, 1172035, 1406442, 1875256, 2344070, 2812884, 3516105, 4688140, 5625768, 7032210, 9376280, 14064420, 28128840]

約数ペア:

[(1, 28128840), (2, 14064420), (3, 9376280), (4, 7032210), (5, 5625768), (6, 4688140), (8, 3516105), (10, 2812884), (12, 2344070), (15, 1875256), (20, 1406442), (24, 1172035), (29, 969960), (30, 937628), (40, 703221), (58, 484980), (59, 476760), (60, 468814), (87, 323320), (116, 242490), (118, 238380), (120, 234407), (137, 205320), (145, 193992), (174, 161660), (177, 158920), (232, 121245), (236, 119190), (274, 102660), (290, 96996), (295, 95352), (348, 80830), (354, 79460), (411, 68440), (435, 64664), (472, 59595), (548, 51330), (580, 48498), (590, 47676), (685, 41064), (696, 40415), (708, 39730), (822, 34220), (870, 32332), (885, 31784), (1096, 25665), (1160, 24249), (1180, 23838), (1370, 20532), (1416, 19865), (1644, 17110), (1711, 16440), (1740, 16166), (1770, 15892), (2055, 13688), (2360, 11919), (2740, 10266), (3288, 8555), (3422, 8220), (3480, 8083), (3540, 7946), (3973, 7080), (4110, 6844), (5133, 5480)]