261198720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:493

約数の個数: 192

約数和(自身を含む): 911280240

約数和(自身を除く): 650081520

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, 137, 144, 160, 180, 192, 240, 274, 288, 320, 331, 360, 384, 411, 480, 548, 576, 640, 662, 685, 720, 822, 960, 993, 1096, 1152, 1233, 1324, 1370, 1440, 1644, 1655, 1920, 1986, 2055, 2192, 2466, 2648, 2740, 2880, 2979, 3288, 3310, 3972, 4110, 4384, 4932, 4965, 5296, 5480, 5760, 5958, 6165, 6576, 6620, 7944, 8220, 8768, 9864, 9930, 10592, 10960, 11916, 12330, 13152, 13240, 14895, 15888, 16440, 17536, 19728, 19860, 21184, 21920, 23832, 24660, 26304, 26480, 29790, 31776, 32880, 39456, 39720, 42368, 43840, 45347, 47664, 49320, 52608, 52960, 59580, 63552, 65760, 78912, 79440, 87680, 90694, 95328, 98640, 105920, 119160, 127104, 131520, 136041, 157824, 158880, 181388, 190656, 197280, 211840, 226735, 238320, 263040, 272082, 317760, 362776, 381312, 394560, 408123, 453470, 476640, 544164, 635520, 680205, 725552, 789120, 816246, 906940, 953280, 1088328, 1360410, 1451104, 1632492, 1813880, 1906560, 2040615, 2176656, 2720820, 2902208, 3264984, 3627760, 4081230, 4353312, 5441640, 5804416, 6529968, 7255520, 8162460, 8706624, 10883280, 13059936, 14511040, 16324920, 17413248, 21766560, 26119872, 29022080, 32649840, 43533120, 52239744, 65299680, 87066240, 130599360, 261198720]

約数ペア:

[(1, 261198720), (2, 130599360), (3, 87066240), (4, 65299680), (5, 52239744), (6, 43533120), (8, 32649840), (9, 29022080), (10, 26119872), (12, 21766560), (15, 17413248), (16, 16324920), (18, 14511040), (20, 13059936), (24, 10883280), (30, 8706624), (32, 8162460), (36, 7255520), (40, 6529968), (45, 5804416), (48, 5441640), (60, 4353312), (64, 4081230), (72, 3627760), (80, 3264984), (90, 2902208), (96, 2720820), (120, 2176656), (128, 2040615), (137, 1906560), (144, 1813880), (160, 1632492), (180, 1451104), (192, 1360410), (240, 1088328), (274, 953280), (288, 906940), (320, 816246), (331, 789120), (360, 725552), (384, 680205), (411, 635520), (480, 544164), (548, 476640), (576, 453470), (640, 408123), (662, 394560), (685, 381312), (720, 362776), (822, 317760), (960, 272082), (993, 263040), (1096, 238320), (1152, 226735), (1233, 211840), (1324, 197280), (1370, 190656), (1440, 181388), (1644, 158880), (1655, 157824), (1920, 136041), (1986, 131520), (2055, 127104), (2192, 119160), (2466, 105920), (2648, 98640), (2740, 95328), (2880, 90694), (2979, 87680), (3288, 79440), (3310, 78912), (3972, 65760), (4110, 63552), (4384, 59580), (4932, 52960), (4965, 52608), (5296, 49320), (5480, 47664), (5760, 45347), (5958, 43840), (6165, 42368), (6576, 39720), (6620, 39456), (7944, 32880), (8220, 31776), (8768, 29790), (9864, 26480), (9930, 26304), (10592, 24660), (10960, 23832), (11916, 21920), (12330, 21184), (13152, 19860), (13240, 19728), (14895, 17536), (15888, 16440)]