20654714880

素因数分解:

$2^{12}\times 3^4\times 5^1\times {\mathrm{12451}}^1$

素因数の和:12492

約数の個数: 260

約数和(自身を含む): 74047885032

約数和(自身を除く): 53393170152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2048, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4096, 4320, 4608, 5120, 5184, 5760, 6144, 6480, 6912, 7680, 8640, 9216, 10240, 10368, 11520, 12288, 12451, 12960, 13824, 15360, 17280, 18432, 20480, 20736, 23040, 24902, 25920, 27648, 30720, 34560, 36864, 37353, 41472, 46080, 49804, 51840, 55296, 61440, 62255, 69120, 74706, 82944, 92160, 99608, 103680, 110592, 112059, 124510, 138240, 149412, 165888, 184320, 186765, 199216, 207360, 224118, 249020, 276480, 298824, 331776, 336177, 373530, 398432, 414720, 448236, 498040, 552960, 560295, 597648, 672354, 747060, 796864, 829440, 896472, 996080, 1008531, 1120590, 1195296, 1344708, 1494120, 1593728, 1658880, 1680885, 1792944, 1992160, 2017062, 2241180, 2390592, 2689416, 2988240, 3187456, 3361770, 3585888, 3984320, 4034124, 4482360, 4781184, 5042655, 5378832, 5976480, 6374912, 6723540, 7171776, 7968640, 8068248, 8964720, 9562368, 10085310, 10757664, 11952960, 12749824, 13447080, 14343552, 15937280, 16136496, 17929440, 19124736, 20170620, 21515328, 23905920, 25499648, 26894160, 28687104, 31874560, 32272992, 35858880, 38249472, 40341240, 43030656, 47811840, 50999296, 53788320, 57374208, 63749120, 64545984, 71717760, 76498944, 80682480, 86061312, 95623680, 107576640, 114748416, 127498240, 129091968, 143435520, 152997888, 161364960, 172122624, 191247360, 215153280, 229496832, 254996480, 258183936, 286871040, 322729920, 344245248, 382494720, 430306560, 458993664, 516367872, 573742080, 645459840, 688490496, 764989440, 860613120, 1032735744, 1147484160, 1290919680, 1376980992, 1721226240, 2065471488, 2294968320, 2581839360, 3442452480, 4130942976, 5163678720, 6884904960, 10327357440, 20654714880]

約数ペア:

[(1, 20654714880), (2, 10327357440), (3, 6884904960), (4, 5163678720), (5, 4130942976), (6, 3442452480), (8, 2581839360), (9, 2294968320), (10, 2065471488), (12, 1721226240), (15, 1376980992), (16, 1290919680), (18, 1147484160), (20, 1032735744), (24, 860613120), (27, 764989440), (30, 688490496), (32, 645459840), (36, 573742080), (40, 516367872), (45, 458993664), (48, 430306560), (54, 382494720), (60, 344245248), (64, 322729920), (72, 286871040), (80, 258183936), (81, 254996480), (90, 229496832), (96, 215153280), (108, 191247360), (120, 172122624), (128, 161364960), (135, 152997888), (144, 143435520), (160, 129091968), (162, 127498240), (180, 114748416), (192, 107576640), (216, 95623680), (240, 86061312), (256, 80682480), (270, 76498944), (288, 71717760), (320, 64545984), (324, 63749120), (360, 57374208), (384, 53788320), (405, 50999296), (432, 47811840), (480, 43030656), (512, 40341240), (540, 38249472), (576, 35858880), (640, 32272992), (648, 31874560), (720, 28687104), (768, 26894160), (810, 25499648), (864, 23905920), (960, 21515328), (1024, 20170620), (1080, 19124736), (1152, 17929440), (1280, 16136496), (1296, 15937280), (1440, 14343552), (1536, 13447080), (1620, 12749824), (1728, 11952960), (1920, 10757664), (2048, 10085310), (2160, 9562368), (2304, 8964720), (2560, 8068248), (2592, 7968640), (2880, 7171776), (3072, 6723540), (3240, 6374912), (3456, 5976480), (3840, 5378832), (4096, 5042655), (4320, 4781184), (4608, 4482360), (5120, 4034124), (5184, 3984320), (5760, 3585888), (6144, 3361770), (6480, 3187456), (6912, 2988240), (7680, 2689416), (8640, 2390592), (9216, 2241180), (10240, 2017062), (10368, 1992160), (11520, 1792944), (12288, 1680885), (12451, 1658880), (12960, 1593728), (13824, 1494120), (15360, 1344708), (17280, 1195296), (18432, 1120590), (20480, 1008531), (20736, 996080), (23040, 896472), (24902, 829440), (25920, 796864), (27648, 747060), (30720, 672354), (34560, 597648), (36864, 560295), (37353, 552960), (41472, 498040), (46080, 448236), (49804, 414720), (51840, 398432), (55296, 373530), (61440, 336177), (62255, 331776), (69120, 298824), (74706, 276480), (82944, 249020), (92160, 224118), (99608, 207360), (103680, 199216), (110592, 186765), (112059, 184320), (124510, 165888), (138240, 149412)]