31691520

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{131}}^1$

素因数の和:168

約数の個数: 288

約数和(自身を含む): 129507840

約数和(自身を除く): 97816320

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, 131, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 262, 270, 280, 288, 315, 320, 336, 360, 378, 384, 393, 420, 432, 448, 480, 504, 524, 540, 560, 576, 630, 640, 655, 672, 720, 756, 768, 786, 840, 864, 896, 917, 945, 960, 1008, 1048, 1080, 1120, 1152, 1179, 1260, 1280, 1310, 1344, 1440, 1512, 1572, 1680, 1728, 1792, 1834, 1890, 1920, 1965, 2016, 2096, 2160, 2240, 2304, 2358, 2520, 2620, 2688, 2751, 2880, 3024, 3144, 3360, 3456, 3537, 3668, 3780, 3840, 3930, 4032, 4192, 4320, 4480, 4585, 4716, 5040, 5240, 5376, 5502, 5760, 5895, 6048, 6288, 6720, 6912, 7074, 7336, 7560, 7860, 8064, 8253, 8384, 8640, 8960, 9170, 9432, 10080, 10480, 11004, 11520, 11790, 12096, 12576, 13440, 13755, 14148, 14672, 15120, 15720, 16128, 16506, 16768, 17280, 17685, 18340, 18864, 20160, 20960, 22008, 23580, 24192, 24759, 25152, 26880, 27510, 28296, 29344, 30240, 31440, 33012, 33536, 34560, 35370, 36680, 37728, 40320, 41265, 41920, 44016, 47160, 48384, 49518, 50304, 55020, 56592, 58688, 60480, 62880, 66024, 70740, 73360, 75456, 80640, 82530, 83840, 88032, 94320, 99036, 100608, 110040, 113184, 117376, 120960, 123795, 125760, 132048, 141480, 146720, 150912, 165060, 167680, 176064, 188640, 198072, 220080, 226368, 234752, 241920, 247590, 251520, 264096, 282960, 293440, 301824, 330120, 352128, 377280, 396144, 440160, 452736, 495180, 503040, 528192, 565920, 586880, 660240, 704256, 754560, 792288, 880320, 905472, 990360, 1056384, 1131840, 1173760, 1320480, 1509120, 1584576, 1760640, 1980720, 2112768, 2263680, 2640960, 3169152, 3521280, 3961440, 4527360, 5281920, 6338304, 7922880, 10563840, 15845760, 31691520]

約数ペア:

[(1, 31691520), (2, 15845760), (3, 10563840), (4, 7922880), (5, 6338304), (6, 5281920), (7, 4527360), (8, 3961440), (9, 3521280), (10, 3169152), (12, 2640960), (14, 2263680), (15, 2112768), (16, 1980720), (18, 1760640), (20, 1584576), (21, 1509120), (24, 1320480), (27, 1173760), (28, 1131840), (30, 1056384), (32, 990360), (35, 905472), (36, 880320), (40, 792288), (42, 754560), (45, 704256), (48, 660240), (54, 586880), (56, 565920), (60, 528192), (63, 503040), (64, 495180), (70, 452736), (72, 440160), (80, 396144), (84, 377280), (90, 352128), (96, 330120), (105, 301824), (108, 293440), (112, 282960), (120, 264096), (126, 251520), (128, 247590), (131, 241920), (135, 234752), (140, 226368), (144, 220080), (160, 198072), (168, 188640), (180, 176064), (189, 167680), (192, 165060), (210, 150912), (216, 146720), (224, 141480), (240, 132048), (252, 125760), (256, 123795), (262, 120960), (270, 117376), (280, 113184), (288, 110040), (315, 100608), (320, 99036), (336, 94320), (360, 88032), (378, 83840), (384, 82530), (393, 80640), (420, 75456), (432, 73360), (448, 70740), (480, 66024), (504, 62880), (524, 60480), (540, 58688), (560, 56592), (576, 55020), (630, 50304), (640, 49518), (655, 48384), (672, 47160), (720, 44016), (756, 41920), (768, 41265), (786, 40320), (840, 37728), (864, 36680), (896, 35370), (917, 34560), (945, 33536), (960, 33012), (1008, 31440), (1048, 30240), (1080, 29344), (1120, 28296), (1152, 27510), (1179, 26880), (1260, 25152), (1280, 24759), (1310, 24192), (1344, 23580), (1440, 22008), (1512, 20960), (1572, 20160), (1680, 18864), (1728, 18340), (1792, 17685), (1834, 17280), (1890, 16768), (1920, 16506), (1965, 16128), (2016, 15720), (2096, 15120), (2160, 14672), (2240, 14148), (2304, 13755), (2358, 13440), (2520, 12576), (2620, 12096), (2688, 11790), (2751, 11520), (2880, 11004), (3024, 10480), (3144, 10080), (3360, 9432), (3456, 9170), (3537, 8960), (3668, 8640), (3780, 8384), (3840, 8253), (3930, 8064), (4032, 7860), (4192, 7560), (4320, 7336), (4480, 7074), (4585, 6912), (4716, 6720), (5040, 6288), (5240, 6048), (5376, 5895), (5502, 5760)]