18155520

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{197}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 63243180

約数和(自身を除く): 45087660

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, 197, 240, 256, 288, 320, 360, 384, 394, 480, 512, 576, 591, 640, 720, 768, 788, 960, 985, 1024, 1152, 1182, 1280, 1440, 1536, 1576, 1773, 1920, 1970, 2048, 2304, 2364, 2560, 2880, 2955, 3072, 3152, 3546, 3840, 3940, 4608, 4728, 5120, 5760, 5910, 6144, 6304, 7092, 7680, 7880, 8865, 9216, 9456, 10240, 11520, 11820, 12608, 14184, 15360, 15760, 17730, 18432, 18912, 23040, 23640, 25216, 28368, 30720, 31520, 35460, 37824, 46080, 47280, 50432, 56736, 63040, 70920, 75648, 92160, 94560, 100864, 113472, 126080, 141840, 151296, 189120, 201728, 226944, 252160, 283680, 302592, 378240, 403456, 453888, 504320, 567360, 605184, 756480, 907776, 1008640, 1134720, 1210368, 1512960, 1815552, 2017280, 2269440, 3025920, 3631104, 4538880, 6051840, 9077760, 18155520]

約数ペア:

[(1, 18155520), (2, 9077760), (3, 6051840), (4, 4538880), (5, 3631104), (6, 3025920), (8, 2269440), (9, 2017280), (10, 1815552), (12, 1512960), (15, 1210368), (16, 1134720), (18, 1008640), (20, 907776), (24, 756480), (30, 605184), (32, 567360), (36, 504320), (40, 453888), (45, 403456), (48, 378240), (60, 302592), (64, 283680), (72, 252160), (80, 226944), (90, 201728), (96, 189120), (120, 151296), (128, 141840), (144, 126080), (160, 113472), (180, 100864), (192, 94560), (197, 92160), (240, 75648), (256, 70920), (288, 63040), (320, 56736), (360, 50432), (384, 47280), (394, 46080), (480, 37824), (512, 35460), (576, 31520), (591, 30720), (640, 28368), (720, 25216), (768, 23640), (788, 23040), (960, 18912), (985, 18432), (1024, 17730), (1152, 15760), (1182, 15360), (1280, 14184), (1440, 12608), (1536, 11820), (1576, 11520), (1773, 10240), (1920, 9456), (1970, 9216), (2048, 8865), (2304, 7880), (2364, 7680), (2560, 7092), (2880, 6304), (2955, 6144), (3072, 5910), (3152, 5760), (3546, 5120), (3840, 4728), (3940, 4608)]