1981198080

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{751}}^1$

素因数の和:1007

約数の個数: 216

約数和(自身を含む): 6893839680

約数和(自身を除く): 4912641600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 229, 240, 256, 288, 320, 360, 384, 458, 480, 576, 640, 687, 720, 751, 768, 916, 960, 1145, 1152, 1280, 1374, 1440, 1502, 1832, 1920, 2061, 2253, 2290, 2304, 2748, 2880, 3004, 3435, 3664, 3755, 3840, 4122, 4506, 4580, 5496, 5760, 6008, 6759, 6870, 7328, 7510, 8244, 9012, 9160, 10305, 10992, 11265, 11520, 12016, 13518, 13740, 14656, 15020, 16488, 18024, 18320, 20610, 21984, 22530, 24032, 27036, 27480, 29312, 30040, 32976, 33795, 36048, 36640, 41220, 43968, 45060, 48064, 54072, 54960, 58624, 60080, 65952, 67590, 72096, 73280, 82440, 87936, 90120, 96128, 108144, 109920, 120160, 131904, 135180, 144192, 146560, 164880, 171979, 175872, 180240, 192256, 216288, 219840, 240320, 263808, 270360, 288384, 293120, 329760, 343958, 360480, 432576, 439680, 480640, 515937, 527616, 540720, 576768, 659520, 687916, 720960, 859895, 865152, 879360, 961280, 1031874, 1081440, 1319040, 1375832, 1441920, 1547811, 1719790, 1730304, 2063748, 2162880, 2579685, 2638080, 2751664, 2883840, 3095622, 3439580, 4127496, 4325760, 5159370, 5503328, 6191244, 6879160, 7739055, 8254992, 8651520, 10318740, 11006656, 12382488, 13758320, 15478110, 16509984, 20637480, 22013312, 24764976, 27516640, 30956220, 33019968, 41274960, 44026624, 49529952, 55033280, 61912440, 66039936, 82549920, 99059904, 110066560, 123824880, 132079872, 165099840, 198119808, 220133120, 247649760, 330199680, 396239616, 495299520, 660399360, 990599040, 1981198080]

約数ペア:

[(1, 1981198080), (2, 990599040), (3, 660399360), (4, 495299520), (5, 396239616), (6, 330199680), (8, 247649760), (9, 220133120), (10, 198119808), (12, 165099840), (15, 132079872), (16, 123824880), (18, 110066560), (20, 99059904), (24, 82549920), (30, 66039936), (32, 61912440), (36, 55033280), (40, 49529952), (45, 44026624), (48, 41274960), (60, 33019968), (64, 30956220), (72, 27516640), (80, 24764976), (90, 22013312), (96, 20637480), (120, 16509984), (128, 15478110), (144, 13758320), (160, 12382488), (180, 11006656), (192, 10318740), (229, 8651520), (240, 8254992), (256, 7739055), (288, 6879160), (320, 6191244), (360, 5503328), (384, 5159370), (458, 4325760), (480, 4127496), (576, 3439580), (640, 3095622), (687, 2883840), (720, 2751664), (751, 2638080), (768, 2579685), (916, 2162880), (960, 2063748), (1145, 1730304), (1152, 1719790), (1280, 1547811), (1374, 1441920), (1440, 1375832), (1502, 1319040), (1832, 1081440), (1920, 1031874), (2061, 961280), (2253, 879360), (2290, 865152), (2304, 859895), (2748, 720960), (2880, 687916), (3004, 659520), (3435, 576768), (3664, 540720), (3755, 527616), (3840, 515937), (4122, 480640), (4506, 439680), (4580, 432576), (5496, 360480), (5760, 343958), (6008, 329760), (6759, 293120), (6870, 288384), (7328, 270360), (7510, 263808), (8244, 240320), (9012, 219840), (9160, 216288), (10305, 192256), (10992, 180240), (11265, 175872), (11520, 171979), (12016, 164880), (13518, 146560), (13740, 144192), (14656, 135180), (15020, 131904), (16488, 120160), (18024, 109920), (18320, 108144), (20610, 96128), (21984, 90120), (22530, 87936), (24032, 82440), (27036, 73280), (27480, 72096), (29312, 67590), (30040, 65952), (32976, 60080), (33795, 58624), (36048, 54960), (36640, 54072), (41220, 48064), (43968, 45060)]