20926080

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{173}}^1$

素因数の和:208

約数の個数: 256

約数和(自身を含む): 85190400

約数和(自身を除く): 64264320

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, 173, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 346, 360, 378, 384, 420, 432, 448, 480, 504, 519, 540, 560, 576, 630, 640, 672, 692, 720, 756, 840, 864, 865, 896, 945, 960, 1008, 1038, 1080, 1120, 1152, 1211, 1260, 1344, 1384, 1440, 1512, 1557, 1680, 1728, 1730, 1890, 1920, 2016, 2076, 2160, 2240, 2422, 2520, 2595, 2688, 2768, 2880, 3024, 3114, 3360, 3456, 3460, 3633, 3780, 4032, 4152, 4320, 4480, 4671, 4844, 5040, 5190, 5536, 5760, 6048, 6055, 6228, 6720, 6920, 7266, 7560, 7785, 8064, 8304, 8640, 9342, 9688, 10080, 10380, 10899, 11072, 12096, 12110, 12456, 13440, 13840, 14532, 15120, 15570, 16608, 17280, 18165, 18684, 19376, 20160, 20760, 21798, 22144, 23355, 24192, 24220, 24912, 27680, 29064, 30240, 31140, 32697, 33216, 36330, 37368, 38752, 40320, 41520, 43596, 46710, 48440, 49824, 54495, 55360, 58128, 60480, 62280, 65394, 66432, 72660, 74736, 77504, 83040, 87192, 93420, 96880, 99648, 108990, 110720, 116256, 120960, 124560, 130788, 145320, 149472, 155008, 163485, 166080, 174384, 186840, 193760, 199296, 217980, 232512, 249120, 261576, 290640, 298944, 326970, 332160, 348768, 373680, 387520, 435960, 465024, 498240, 523152, 581280, 597888, 653940, 697536, 747360, 775040, 871920, 996480, 1046304, 1162560, 1307880, 1395072, 1494720, 1743840, 2092608, 2325120, 2615760, 2989440, 3487680, 4185216, 5231520, 6975360, 10463040, 20926080]

約数ペア:

[(1, 20926080), (2, 10463040), (3, 6975360), (4, 5231520), (5, 4185216), (6, 3487680), (7, 2989440), (8, 2615760), (9, 2325120), (10, 2092608), (12, 1743840), (14, 1494720), (15, 1395072), (16, 1307880), (18, 1162560), (20, 1046304), (21, 996480), (24, 871920), (27, 775040), (28, 747360), (30, 697536), (32, 653940), (35, 597888), (36, 581280), (40, 523152), (42, 498240), (45, 465024), (48, 435960), (54, 387520), (56, 373680), (60, 348768), (63, 332160), (64, 326970), (70, 298944), (72, 290640), (80, 261576), (84, 249120), (90, 232512), (96, 217980), (105, 199296), (108, 193760), (112, 186840), (120, 174384), (126, 166080), (128, 163485), (135, 155008), (140, 149472), (144, 145320), (160, 130788), (168, 124560), (173, 120960), (180, 116256), (189, 110720), (192, 108990), (210, 99648), (216, 96880), (224, 93420), (240, 87192), (252, 83040), (270, 77504), (280, 74736), (288, 72660), (315, 66432), (320, 65394), (336, 62280), (346, 60480), (360, 58128), (378, 55360), (384, 54495), (420, 49824), (432, 48440), (448, 46710), (480, 43596), (504, 41520), (519, 40320), (540, 38752), (560, 37368), (576, 36330), (630, 33216), (640, 32697), (672, 31140), (692, 30240), (720, 29064), (756, 27680), (840, 24912), (864, 24220), (865, 24192), (896, 23355), (945, 22144), (960, 21798), (1008, 20760), (1038, 20160), (1080, 19376), (1120, 18684), (1152, 18165), (1211, 17280), (1260, 16608), (1344, 15570), (1384, 15120), (1440, 14532), (1512, 13840), (1557, 13440), (1680, 12456), (1728, 12110), (1730, 12096), (1890, 11072), (1920, 10899), (2016, 10380), (2076, 10080), (2160, 9688), (2240, 9342), (2422, 8640), (2520, 8304), (2595, 8064), (2688, 7785), (2768, 7560), (2880, 7266), (3024, 6920), (3114, 6720), (3360, 6228), (3456, 6055), (3460, 6048), (3633, 5760), (3780, 5536), (4032, 5190), (4152, 5040), (4320, 4844), (4480, 4671)]