251717760

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{2081}}^1$

素因数の和:2116

約数の個数: 256

約数和(自身を含む): 1019347200

約数和(自身を除く): 767629440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 2016, 2081, 2160, 2240, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 4032, 4162, 4320, 4480, 5040, 5760, 6048, 6243, 6720, 7560, 8064, 8324, 8640, 10080, 10405, 12096, 12486, 13440, 14567, 15120, 16648, 17280, 18729, 20160, 20810, 24192, 24972, 29134, 30240, 31215, 33296, 37458, 40320, 41620, 43701, 49944, 56187, 58268, 60480, 62430, 66592, 72835, 74916, 83240, 87402, 93645, 99888, 112374, 116536, 120960, 124860, 131103, 133184, 145670, 149832, 166480, 174804, 187290, 199776, 218505, 224748, 233072, 249720, 262206, 266368, 280935, 291340, 299664, 332960, 349608, 374580, 393309, 399552, 437010, 449496, 466144, 499440, 524412, 561870, 582680, 599328, 655515, 665920, 699216, 749160, 786618, 799104, 874020, 898992, 932288, 998880, 1048824, 1123740, 1165360, 1198656, 1311030, 1331840, 1398432, 1498320, 1573236, 1748040, 1797984, 1864576, 1966545, 1997760, 2097648, 2247480, 2330720, 2397312, 2622060, 2796864, 2996640, 3146472, 3496080, 3595968, 3933090, 3995520, 4195296, 4494960, 4661440, 5244120, 5593728, 5993280, 6292944, 6992160, 7191936, 7866180, 8390592, 8989920, 9322880, 10488240, 11986560, 12585888, 13984320, 15732360, 16781184, 17979840, 20976480, 25171776, 27968640, 31464720, 35959680, 41952960, 50343552, 62929440, 83905920, 125858880, 251717760]

約数ペア:

[(1, 251717760), (2, 125858880), (3, 83905920), (4, 62929440), (5, 50343552), (6, 41952960), (7, 35959680), (8, 31464720), (9, 27968640), (10, 25171776), (12, 20976480), (14, 17979840), (15, 16781184), (16, 15732360), (18, 13984320), (20, 12585888), (21, 11986560), (24, 10488240), (27, 9322880), (28, 8989920), (30, 8390592), (32, 7866180), (35, 7191936), (36, 6992160), (40, 6292944), (42, 5993280), (45, 5593728), (48, 5244120), (54, 4661440), (56, 4494960), (60, 4195296), (63, 3995520), (64, 3933090), (70, 3595968), (72, 3496080), (80, 3146472), (84, 2996640), (90, 2796864), (96, 2622060), (105, 2397312), (108, 2330720), (112, 2247480), (120, 2097648), (126, 1997760), (128, 1966545), (135, 1864576), (140, 1797984), (144, 1748040), (160, 1573236), (168, 1498320), (180, 1398432), (189, 1331840), (192, 1311030), (210, 1198656), (216, 1165360), (224, 1123740), (240, 1048824), (252, 998880), (270, 932288), (280, 898992), (288, 874020), (315, 799104), (320, 786618), (336, 749160), (360, 699216), (378, 665920), (384, 655515), (420, 599328), (432, 582680), (448, 561870), (480, 524412), (504, 499440), (540, 466144), (560, 449496), (576, 437010), (630, 399552), (640, 393309), (672, 374580), (720, 349608), (756, 332960), (840, 299664), (864, 291340), (896, 280935), (945, 266368), (960, 262206), (1008, 249720), (1080, 233072), (1120, 224748), (1152, 218505), (1260, 199776), (1344, 187290), (1440, 174804), (1512, 166480), (1680, 149832), (1728, 145670), (1890, 133184), (1920, 131103), (2016, 124860), (2081, 120960), (2160, 116536), (2240, 112374), (2520, 99888), (2688, 93645), (2880, 87402), (3024, 83240), (3360, 74916), (3456, 72835), (3780, 66592), (4032, 62430), (4162, 60480), (4320, 58268), (4480, 56187), (5040, 49944), (5760, 43701), (6048, 41620), (6243, 40320), (6720, 37458), (7560, 33296), (8064, 31215), (8324, 30240), (8640, 29134), (10080, 24972), (10405, 24192), (12096, 20810), (12486, 20160), (13440, 18729), (14567, 17280), (15120, 16648)]