20874240

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{151}}^1$

素因数の和:185

約数の個数: 176

約数和(自身を含む): 74674560

約数和(自身を除く): 53800320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 151, 160, 180, 192, 216, 240, 256, 270, 288, 302, 320, 360, 384, 432, 453, 480, 512, 540, 576, 604, 640, 720, 755, 768, 864, 906, 960, 1024, 1080, 1152, 1208, 1280, 1359, 1440, 1510, 1536, 1728, 1812, 1920, 2160, 2265, 2304, 2416, 2560, 2718, 2880, 3020, 3072, 3456, 3624, 3840, 4077, 4320, 4530, 4608, 4832, 5120, 5436, 5760, 6040, 6795, 6912, 7248, 7680, 8154, 8640, 9060, 9216, 9664, 10872, 11520, 12080, 13590, 13824, 14496, 15360, 16308, 17280, 18120, 19328, 20385, 21744, 23040, 24160, 27180, 27648, 28992, 32616, 34560, 36240, 38656, 40770, 43488, 46080, 48320, 54360, 57984, 65232, 69120, 72480, 77312, 81540, 86976, 96640, 108720, 115968, 130464, 138240, 144960, 154624, 163080, 173952, 193280, 217440, 231936, 260928, 289920, 326160, 347904, 386560, 434880, 463872, 521856, 579840, 652320, 695808, 773120, 869760, 1043712, 1159680, 1304640, 1391616, 1739520, 2087424, 2319360, 2609280, 3479040, 4174848, 5218560, 6958080, 10437120, 20874240]

約数ペア:

[(1, 20874240), (2, 10437120), (3, 6958080), (4, 5218560), (5, 4174848), (6, 3479040), (8, 2609280), (9, 2319360), (10, 2087424), (12, 1739520), (15, 1391616), (16, 1304640), (18, 1159680), (20, 1043712), (24, 869760), (27, 773120), (30, 695808), (32, 652320), (36, 579840), (40, 521856), (45, 463872), (48, 434880), (54, 386560), (60, 347904), (64, 326160), (72, 289920), (80, 260928), (90, 231936), (96, 217440), (108, 193280), (120, 173952), (128, 163080), (135, 154624), (144, 144960), (151, 138240), (160, 130464), (180, 115968), (192, 108720), (216, 96640), (240, 86976), (256, 81540), (270, 77312), (288, 72480), (302, 69120), (320, 65232), (360, 57984), (384, 54360), (432, 48320), (453, 46080), (480, 43488), (512, 40770), (540, 38656), (576, 36240), (604, 34560), (640, 32616), (720, 28992), (755, 27648), (768, 27180), (864, 24160), (906, 23040), (960, 21744), (1024, 20385), (1080, 19328), (1152, 18120), (1208, 17280), (1280, 16308), (1359, 15360), (1440, 14496), (1510, 13824), (1536, 13590), (1728, 12080), (1812, 11520), (1920, 10872), (2160, 9664), (2265, 9216), (2304, 9060), (2416, 8640), (2560, 8154), (2718, 7680), (2880, 7248), (3020, 6912), (3072, 6795), (3456, 6040), (3624, 5760), (3840, 5436), (4077, 5120), (4320, 4832), (4530, 4608)]