20424960

素因数分解:

$2^8\times 3^4\times 5^1\times {\mathrm{197}}^1$

素因数の和:230

約数の個数: 180

約数和(自身を含む): 73455228

約数和(自身を除く): 53030268

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, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 197, 216, 240, 256, 270, 288, 320, 324, 360, 384, 394, 405, 432, 480, 540, 576, 591, 640, 648, 720, 768, 788, 810, 864, 960, 985, 1080, 1152, 1182, 1280, 1296, 1440, 1576, 1620, 1728, 1773, 1920, 1970, 2160, 2304, 2364, 2592, 2880, 2955, 3152, 3240, 3456, 3546, 3840, 3940, 4320, 4728, 5184, 5319, 5760, 5910, 6304, 6480, 6912, 7092, 7880, 8640, 8865, 9456, 10368, 10638, 11520, 11820, 12608, 12960, 14184, 15760, 15957, 17280, 17730, 18912, 20736, 21276, 23640, 25216, 25920, 26595, 28368, 31520, 31914, 34560, 35460, 37824, 42552, 47280, 50432, 51840, 53190, 56736, 63040, 63828, 70920, 75648, 79785, 85104, 94560, 103680, 106380, 113472, 126080, 127656, 141840, 151296, 159570, 170208, 189120, 212760, 226944, 252160, 255312, 283680, 319140, 340416, 378240, 425520, 453888, 510624, 567360, 638280, 680832, 756480, 851040, 1021248, 1134720, 1276560, 1361664, 1702080, 2042496, 2269440, 2553120, 3404160, 4084992, 5106240, 6808320, 10212480, 20424960]

約数ペア:

[(1, 20424960), (2, 10212480), (3, 6808320), (4, 5106240), (5, 4084992), (6, 3404160), (8, 2553120), (9, 2269440), (10, 2042496), (12, 1702080), (15, 1361664), (16, 1276560), (18, 1134720), (20, 1021248), (24, 851040), (27, 756480), (30, 680832), (32, 638280), (36, 567360), (40, 510624), (45, 453888), (48, 425520), (54, 378240), (60, 340416), (64, 319140), (72, 283680), (80, 255312), (81, 252160), (90, 226944), (96, 212760), (108, 189120), (120, 170208), (128, 159570), (135, 151296), (144, 141840), (160, 127656), (162, 126080), (180, 113472), (192, 106380), (197, 103680), (216, 94560), (240, 85104), (256, 79785), (270, 75648), (288, 70920), (320, 63828), (324, 63040), (360, 56736), (384, 53190), (394, 51840), (405, 50432), (432, 47280), (480, 42552), (540, 37824), (576, 35460), (591, 34560), (640, 31914), (648, 31520), (720, 28368), (768, 26595), (788, 25920), (810, 25216), (864, 23640), (960, 21276), (985, 20736), (1080, 18912), (1152, 17730), (1182, 17280), (1280, 15957), (1296, 15760), (1440, 14184), (1576, 12960), (1620, 12608), (1728, 11820), (1773, 11520), (1920, 10638), (1970, 10368), (2160, 9456), (2304, 8865), (2364, 8640), (2592, 7880), (2880, 7092), (2955, 6912), (3152, 6480), (3240, 6304), (3456, 5910), (3546, 5760), (3840, 5319), (3940, 5184), (4320, 4728)]