1256451840

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{15581}}^1$

素因数の和:15615

約数の個数: 216

約数和(自身を含む): 4968538848

約数和(自身を除く): 3712087008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 8064, 8960, 10080, 11520, 13440, 15581, 16128, 20160, 26880, 31162, 40320, 46743, 62324, 77905, 80640, 93486, 109067, 124648, 140229, 155810, 186972, 218134, 233715, 249296, 280458, 311620, 327201, 373944, 436268, 467430, 498592, 545335, 560916, 623240, 654402, 701145, 747888, 872536, 934860, 981603, 997184, 1090670, 1121832, 1246480, 1308804, 1402290, 1495776, 1636005, 1745072, 1869720, 1963206, 1994368, 2181340, 2243664, 2492960, 2617608, 2804580, 2991552, 3272010, 3490144, 3739440, 3926412, 3988736, 4362680, 4487328, 4908015, 4985920, 5235216, 5609160, 5983104, 6544020, 6980288, 7478880, 7852824, 8725360, 8974656, 9816030, 9971840, 10470432, 11218320, 11966208, 13088040, 13960576, 14957760, 15705648, 17450720, 17949312, 19632060, 19943680, 20940864, 22436640, 26176080, 27921152, 29915520, 31411296, 34901440, 35898624, 39264120, 41881728, 44873280, 52352160, 59831040, 62822592, 69802880, 78528240, 83763456, 89746560, 104704320, 125645184, 139605760, 157056480, 179493120, 209408640, 251290368, 314112960, 418817280, 628225920, 1256451840]

約数ペア:

[(1, 1256451840), (2, 628225920), (3, 418817280), (4, 314112960), (5, 251290368), (6, 209408640), (7, 179493120), (8, 157056480), (9, 139605760), (10, 125645184), (12, 104704320), (14, 89746560), (15, 83763456), (16, 78528240), (18, 69802880), (20, 62822592), (21, 59831040), (24, 52352160), (28, 44873280), (30, 41881728), (32, 39264120), (35, 35898624), (36, 34901440), (40, 31411296), (42, 29915520), (45, 27921152), (48, 26176080), (56, 22436640), (60, 20940864), (63, 19943680), (64, 19632060), (70, 17949312), (72, 17450720), (80, 15705648), (84, 14957760), (90, 13960576), (96, 13088040), (105, 11966208), (112, 11218320), (120, 10470432), (126, 9971840), (128, 9816030), (140, 8974656), (144, 8725360), (160, 7852824), (168, 7478880), (180, 6980288), (192, 6544020), (210, 5983104), (224, 5609160), (240, 5235216), (252, 4985920), (256, 4908015), (280, 4487328), (288, 4362680), (315, 3988736), (320, 3926412), (336, 3739440), (360, 3490144), (384, 3272010), (420, 2991552), (448, 2804580), (480, 2617608), (504, 2492960), (560, 2243664), (576, 2181340), (630, 1994368), (640, 1963206), (672, 1869720), (720, 1745072), (768, 1636005), (840, 1495776), (896, 1402290), (960, 1308804), (1008, 1246480), (1120, 1121832), (1152, 1090670), (1260, 997184), (1280, 981603), (1344, 934860), (1440, 872536), (1680, 747888), (1792, 701145), (1920, 654402), (2016, 623240), (2240, 560916), (2304, 545335), (2520, 498592), (2688, 467430), (2880, 436268), (3360, 373944), (3840, 327201), (4032, 311620), (4480, 280458), (5040, 249296), (5376, 233715), (5760, 218134), (6720, 186972), (8064, 155810), (8960, 140229), (10080, 124648), (11520, 109067), (13440, 93486), (15581, 80640), (16128, 77905), (20160, 62324), (26880, 46743), (31162, 40320)]