399799680

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:377

約数の個数: 256

約数和(自身を含む): 1473500160

約数和(自身を除く): 1073700480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 151, 160, 168, 192, 197, 210, 224, 240, 280, 302, 320, 336, 384, 394, 420, 448, 453, 480, 560, 591, 604, 640, 672, 755, 788, 840, 896, 906, 960, 985, 1057, 1120, 1182, 1208, 1344, 1379, 1510, 1576, 1680, 1812, 1920, 1970, 2114, 2240, 2265, 2364, 2416, 2688, 2758, 2955, 3020, 3152, 3171, 3360, 3624, 3940, 4137, 4228, 4480, 4530, 4728, 4832, 5285, 5516, 5910, 6040, 6304, 6342, 6720, 6895, 7248, 7880, 8274, 8456, 9060, 9456, 9664, 10570, 11032, 11820, 12080, 12608, 12684, 13440, 13790, 14496, 15760, 15855, 16548, 16912, 18120, 18912, 19328, 20685, 21140, 22064, 23640, 24160, 25216, 25368, 27580, 28992, 29747, 31520, 31710, 33096, 33824, 36240, 37824, 41370, 42280, 44128, 47280, 48320, 50736, 55160, 57984, 59494, 63040, 63420, 66192, 67648, 72480, 75648, 82740, 84560, 88256, 89241, 94560, 96640, 101472, 110320, 118988, 126080, 126840, 132384, 135296, 144960, 148735, 165480, 169120, 176512, 178482, 189120, 202944, 208229, 220640, 237976, 253680, 264768, 289920, 297470, 330960, 338240, 356964, 378240, 405888, 416458, 441280, 446205, 475952, 507360, 529536, 594940, 624687, 661920, 676480, 713928, 832916, 882560, 892410, 951904, 1014720, 1041145, 1189880, 1249374, 1323840, 1427856, 1665832, 1784820, 1903808, 2029440, 2082290, 2379760, 2498748, 2647680, 2855712, 3123435, 3331664, 3569640, 3807616, 4164580, 4759520, 4997496, 5711424, 6246870, 6663328, 7139280, 8329160, 9519040, 9994992, 11422848, 12493740, 13326656, 14278560, 16658320, 19038080, 19989984, 24987480, 26653312, 28557120, 33316640, 39979968, 49974960, 57114240, 66633280, 79959936, 99949920, 133266560, 199899840, 399799680]

約数ペア:

[(1, 399799680), (2, 199899840), (3, 133266560), (4, 99949920), (5, 79959936), (6, 66633280), (7, 57114240), (8, 49974960), (10, 39979968), (12, 33316640), (14, 28557120), (15, 26653312), (16, 24987480), (20, 19989984), (21, 19038080), (24, 16658320), (28, 14278560), (30, 13326656), (32, 12493740), (35, 11422848), (40, 9994992), (42, 9519040), (48, 8329160), (56, 7139280), (60, 6663328), (64, 6246870), (70, 5711424), (80, 4997496), (84, 4759520), (96, 4164580), (105, 3807616), (112, 3569640), (120, 3331664), (128, 3123435), (140, 2855712), (151, 2647680), (160, 2498748), (168, 2379760), (192, 2082290), (197, 2029440), (210, 1903808), (224, 1784820), (240, 1665832), (280, 1427856), (302, 1323840), (320, 1249374), (336, 1189880), (384, 1041145), (394, 1014720), (420, 951904), (448, 892410), (453, 882560), (480, 832916), (560, 713928), (591, 676480), (604, 661920), (640, 624687), (672, 594940), (755, 529536), (788, 507360), (840, 475952), (896, 446205), (906, 441280), (960, 416458), (985, 405888), (1057, 378240), (1120, 356964), (1182, 338240), (1208, 330960), (1344, 297470), (1379, 289920), (1510, 264768), (1576, 253680), (1680, 237976), (1812, 220640), (1920, 208229), (1970, 202944), (2114, 189120), (2240, 178482), (2265, 176512), (2364, 169120), (2416, 165480), (2688, 148735), (2758, 144960), (2955, 135296), (3020, 132384), (3152, 126840), (3171, 126080), (3360, 118988), (3624, 110320), (3940, 101472), (4137, 96640), (4228, 94560), (4480, 89241), (4530, 88256), (4728, 84560), (4832, 82740), (5285, 75648), (5516, 72480), (5910, 67648), (6040, 66192), (6304, 63420), (6342, 63040), (6720, 59494), (6895, 57984), (7248, 55160), (7880, 50736), (8274, 48320), (8456, 47280), (9060, 44128), (9456, 42280), (9664, 41370), (10570, 37824), (11032, 36240), (11820, 33824), (12080, 33096), (12608, 31710), (12684, 31520), (13440, 29747), (13790, 28992), (14496, 27580), (15760, 25368), (15855, 25216), (16548, 24160), (16912, 23640), (18120, 22064), (18912, 21140), (19328, 20685)]