256381440

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 320

約数和(自身を含む): 989936640

約数和(自身を除く): 733555200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 152, 160, 168, 190, 192, 210, 224, 228, 240, 251, 256, 266, 280, 285, 304, 320, 336, 380, 384, 399, 420, 448, 456, 480, 502, 512, 532, 560, 570, 608, 640, 665, 672, 753, 760, 768, 798, 840, 896, 912, 960, 1004, 1064, 1120, 1140, 1216, 1255, 1280, 1330, 1344, 1506, 1520, 1536, 1596, 1680, 1757, 1792, 1824, 1920, 1995, 2008, 2128, 2240, 2280, 2432, 2510, 2560, 2660, 2688, 3012, 3040, 3192, 3360, 3514, 3584, 3648, 3765, 3840, 3990, 4016, 4256, 4480, 4560, 4769, 4864, 5020, 5271, 5320, 5376, 6024, 6080, 6384, 6720, 7028, 7296, 7530, 7680, 7980, 8032, 8512, 8785, 8960, 9120, 9538, 9728, 10040, 10542, 10640, 10752, 12048, 12160, 12768, 13440, 14056, 14307, 14592, 15060, 15960, 16064, 17024, 17570, 17920, 18240, 19076, 20080, 21084, 21280, 23845, 24096, 24320, 25536, 26355, 26880, 28112, 28614, 29184, 30120, 31920, 32128, 33383, 34048, 35140, 36480, 38152, 40160, 42168, 42560, 47690, 48192, 48640, 51072, 52710, 53760, 56224, 57228, 60240, 63840, 64256, 66766, 68096, 70280, 71535, 72960, 76304, 80320, 84336, 85120, 95380, 96384, 100149, 102144, 105420, 112448, 114456, 120480, 127680, 128512, 133532, 140560, 143070, 145920, 152608, 160640, 166915, 168672, 170240, 190760, 192768, 200298, 204288, 210840, 224896, 228912, 240960, 255360, 267064, 281120, 286140, 305216, 321280, 333830, 337344, 340480, 381520, 385536, 400596, 421680, 449792, 457824, 481920, 500745, 510720, 534128, 562240, 572280, 610432, 642560, 667660, 674688, 763040, 801192, 843360, 899584, 915648, 963840, 1001490, 1021440, 1068256, 1124480, 1144560, 1220864, 1335320, 1349376, 1526080, 1602384, 1686720, 1831296, 1927680, 2002980, 2136512, 2248960, 2289120, 2441728, 2670640, 2698752, 3052160, 3204768, 3373440, 3662592, 4005960, 4273024, 4497920, 4578240, 5341280, 6104320, 6409536, 6746880, 7325184, 8011920, 8546048, 9156480, 10682560, 12208640, 12819072, 13493760, 16023840, 17092096, 18312960, 21365120, 25638144, 32047680, 36625920, 42730240, 51276288, 64095360, 85460480, 128190720, 256381440]

約数ペア:

[(1, 256381440), (2, 128190720), (3, 85460480), (4, 64095360), (5, 51276288), (6, 42730240), (7, 36625920), (8, 32047680), (10, 25638144), (12, 21365120), (14, 18312960), (15, 17092096), (16, 16023840), (19, 13493760), (20, 12819072), (21, 12208640), (24, 10682560), (28, 9156480), (30, 8546048), (32, 8011920), (35, 7325184), (38, 6746880), (40, 6409536), (42, 6104320), (48, 5341280), (56, 4578240), (57, 4497920), (60, 4273024), (64, 4005960), (70, 3662592), (76, 3373440), (80, 3204768), (84, 3052160), (95, 2698752), (96, 2670640), (105, 2441728), (112, 2289120), (114, 2248960), (120, 2136512), (128, 2002980), (133, 1927680), (140, 1831296), (152, 1686720), (160, 1602384), (168, 1526080), (190, 1349376), (192, 1335320), (210, 1220864), (224, 1144560), (228, 1124480), (240, 1068256), (251, 1021440), (256, 1001490), (266, 963840), (280, 915648), (285, 899584), (304, 843360), (320, 801192), (336, 763040), (380, 674688), (384, 667660), (399, 642560), (420, 610432), (448, 572280), (456, 562240), (480, 534128), (502, 510720), (512, 500745), (532, 481920), (560, 457824), (570, 449792), (608, 421680), (640, 400596), (665, 385536), (672, 381520), (753, 340480), (760, 337344), (768, 333830), (798, 321280), (840, 305216), (896, 286140), (912, 281120), (960, 267064), (1004, 255360), (1064, 240960), (1120, 228912), (1140, 224896), (1216, 210840), (1255, 204288), (1280, 200298), (1330, 192768), (1344, 190760), (1506, 170240), (1520, 168672), (1536, 166915), (1596, 160640), (1680, 152608), (1757, 145920), (1792, 143070), (1824, 140560), (1920, 133532), (1995, 128512), (2008, 127680), (2128, 120480), (2240, 114456), (2280, 112448), (2432, 105420), (2510, 102144), (2560, 100149), (2660, 96384), (2688, 95380), (3012, 85120), (3040, 84336), (3192, 80320), (3360, 76304), (3514, 72960), (3584, 71535), (3648, 70280), (3765, 68096), (3840, 66766), (3990, 64256), (4016, 63840), (4256, 60240), (4480, 57228), (4560, 56224), (4769, 53760), (4864, 52710), (5020, 51072), (5271, 48640), (5320, 48192), (5376, 47690), (6024, 42560), (6080, 42168), (6384, 40160), (6720, 38152), (7028, 36480), (7296, 35140), (7530, 34048), (7680, 33383), (7980, 32128), (8032, 31920), (8512, 30120), (8785, 29184), (8960, 28614), (9120, 28112), (9538, 26880), (9728, 26355), (10040, 25536), (10542, 24320), (10640, 24096), (10752, 23845), (12048, 21280), (12160, 21084), (12768, 20080), (13440, 19076), (14056, 18240), (14307, 17920), (14592, 17570), (15060, 17024), (15960, 16064)]