638346240

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{1979}}^1$

素因数の和:2017

約数の個数: 264

約数和(自身を含む): 2529109440

約数和(自身を除く): 1890763200

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, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1024, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 1979, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3072, 3360, 3584, 3840, 3958, 4032, 4480, 4608, 5040, 5120, 5376, 5760, 5937, 6720, 7168, 7680, 7916, 8064, 8960, 9216, 9895, 10080, 10752, 11520, 11874, 13440, 13853, 15360, 15832, 16128, 17811, 17920, 19790, 20160, 21504, 23040, 23748, 26880, 27706, 29685, 31664, 32256, 35622, 35840, 39580, 40320, 41559, 46080, 47496, 53760, 55412, 59370, 63328, 64512, 69265, 71244, 79160, 80640, 83118, 89055, 94992, 107520, 110824, 118740, 124677, 126656, 138530, 142488, 158320, 161280, 166236, 178110, 189984, 207795, 221648, 237480, 249354, 253312, 277060, 284976, 316640, 322560, 332472, 356220, 379968, 415590, 443296, 474960, 498708, 506624, 554120, 569952, 623385, 633280, 664944, 712440, 759936, 831180, 886592, 949920, 997416, 1013248, 1108240, 1139904, 1246770, 1266560, 1329888, 1424880, 1519872, 1662360, 1773184, 1899840, 1994832, 2026496, 2216480, 2279808, 2493540, 2533120, 2659776, 2849760, 3039744, 3324720, 3546368, 3799680, 3989664, 4432960, 4559616, 4987080, 5066240, 5319552, 5699520, 6079488, 6649440, 7092736, 7599360, 7979328, 8865920, 9119232, 9974160, 10132480, 10639104, 11399040, 13298880, 14185472, 15198720, 15958656, 17731840, 18238464, 19948320, 21278208, 22798080, 26597760, 30397440, 31917312, 35463680, 39896640, 42556416, 45596160, 53195520, 63834624, 70927360, 79793280, 91192320, 106391040, 127669248, 159586560, 212782080, 319173120, 638346240]

約数ペア:

[(1, 638346240), (2, 319173120), (3, 212782080), (4, 159586560), (5, 127669248), (6, 106391040), (7, 91192320), (8, 79793280), (9, 70927360), (10, 63834624), (12, 53195520), (14, 45596160), (15, 42556416), (16, 39896640), (18, 35463680), (20, 31917312), (21, 30397440), (24, 26597760), (28, 22798080), (30, 21278208), (32, 19948320), (35, 18238464), (36, 17731840), (40, 15958656), (42, 15198720), (45, 14185472), (48, 13298880), (56, 11399040), (60, 10639104), (63, 10132480), (64, 9974160), (70, 9119232), (72, 8865920), (80, 7979328), (84, 7599360), (90, 7092736), (96, 6649440), (105, 6079488), (112, 5699520), (120, 5319552), (126, 5066240), (128, 4987080), (140, 4559616), (144, 4432960), (160, 3989664), (168, 3799680), (180, 3546368), (192, 3324720), (210, 3039744), (224, 2849760), (240, 2659776), (252, 2533120), (256, 2493540), (280, 2279808), (288, 2216480), (315, 2026496), (320, 1994832), (336, 1899840), (360, 1773184), (384, 1662360), (420, 1519872), (448, 1424880), (480, 1329888), (504, 1266560), (512, 1246770), (560, 1139904), (576, 1108240), (630, 1013248), (640, 997416), (672, 949920), (720, 886592), (768, 831180), (840, 759936), (896, 712440), (960, 664944), (1008, 633280), (1024, 623385), (1120, 569952), (1152, 554120), (1260, 506624), (1280, 498708), (1344, 474960), (1440, 443296), (1536, 415590), (1680, 379968), (1792, 356220), (1920, 332472), (1979, 322560), (2016, 316640), (2240, 284976), (2304, 277060), (2520, 253312), (2560, 249354), (2688, 237480), (2880, 221648), (3072, 207795), (3360, 189984), (3584, 178110), (3840, 166236), (3958, 161280), (4032, 158320), (4480, 142488), (4608, 138530), (5040, 126656), (5120, 124677), (5376, 118740), (5760, 110824), (5937, 107520), (6720, 94992), (7168, 89055), (7680, 83118), (7916, 80640), (8064, 79160), (8960, 71244), (9216, 69265), (9895, 64512), (10080, 63328), (10752, 59370), (11520, 55412), (11874, 53760), (13440, 47496), (13853, 46080), (15360, 41559), (15832, 40320), (16128, 39580), (17811, 35840), (17920, 35622), (19790, 32256), (20160, 31664), (21504, 29685), (23040, 27706), (23748, 26880)]