20494080

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{593}}^1$

素因数の和:623

約数の個数: 144

約数和(自身を含む): 72848160

約数和(自身を除く): 52354080

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, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 593, 640, 720, 768, 864, 960, 1080, 1152, 1186, 1280, 1440, 1728, 1779, 1920, 2160, 2304, 2372, 2880, 2965, 3456, 3558, 3840, 4320, 4744, 5337, 5760, 5930, 6912, 7116, 8640, 8895, 9488, 10674, 11520, 11860, 14232, 16011, 17280, 17790, 18976, 21348, 23720, 26685, 28464, 32022, 34560, 35580, 37952, 42696, 47440, 53370, 56928, 64044, 71160, 75904, 80055, 85392, 94880, 106740, 113856, 128088, 142320, 151808, 160110, 170784, 189760, 213480, 227712, 256176, 284640, 320220, 341568, 379520, 426960, 455424, 512352, 569280, 640440, 683136, 759040, 853920, 1024704, 1138560, 1280880, 1366272, 1707840, 2049408, 2277120, 2561760, 3415680, 4098816, 5123520, 6831360, 10247040, 20494080]

約数ペア:

[(1, 20494080), (2, 10247040), (3, 6831360), (4, 5123520), (5, 4098816), (6, 3415680), (8, 2561760), (9, 2277120), (10, 2049408), (12, 1707840), (15, 1366272), (16, 1280880), (18, 1138560), (20, 1024704), (24, 853920), (27, 759040), (30, 683136), (32, 640440), (36, 569280), (40, 512352), (45, 455424), (48, 426960), (54, 379520), (60, 341568), (64, 320220), (72, 284640), (80, 256176), (90, 227712), (96, 213480), (108, 189760), (120, 170784), (128, 160110), (135, 151808), (144, 142320), (160, 128088), (180, 113856), (192, 106740), (216, 94880), (240, 85392), (256, 80055), (270, 75904), (288, 71160), (320, 64044), (360, 56928), (384, 53370), (432, 47440), (480, 42696), (540, 37952), (576, 35580), (593, 34560), (640, 32022), (720, 28464), (768, 26685), (864, 23720), (960, 21348), (1080, 18976), (1152, 17790), (1186, 17280), (1280, 16011), (1440, 14232), (1728, 11860), (1779, 11520), (1920, 10674), (2160, 9488), (2304, 8895), (2372, 8640), (2880, 7116), (2965, 6912), (3456, 5930), (3558, 5760), (3840, 5337), (4320, 4744)]