257521680

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1019}}^1$

素因数の和:1060

約数の個数: 240

約数和(自身を含む): 966813120

約数和(自身を除く): 709291440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 243, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 486, 520, 540, 585, 624, 648, 702, 720, 780, 810, 936, 972, 1019, 1040, 1053, 1080, 1170, 1215, 1296, 1404, 1560, 1620, 1755, 1872, 1944, 2038, 2106, 2160, 2340, 2430, 2808, 3057, 3120, 3159, 3240, 3510, 3888, 4076, 4212, 4680, 4860, 5095, 5265, 5616, 6114, 6318, 6480, 7020, 8152, 8424, 9171, 9360, 9720, 10190, 10530, 12228, 12636, 13247, 14040, 15285, 15795, 16304, 16848, 18342, 19440, 20380, 21060, 24456, 25272, 26494, 27513, 28080, 30570, 31590, 36684, 39741, 40760, 42120, 45855, 48912, 50544, 52988, 55026, 61140, 63180, 66235, 73368, 79482, 81520, 82539, 84240, 91710, 105976, 110052, 119223, 122280, 126360, 132470, 137565, 146736, 158964, 165078, 183420, 198705, 211952, 220104, 238446, 244560, 247617, 252720, 264940, 275130, 317928, 330156, 357669, 366840, 397410, 412695, 440208, 476892, 495234, 529880, 550260, 596115, 635856, 660312, 715338, 733680, 794820, 825390, 953784, 990468, 1059760, 1073007, 1100520, 1192230, 1238085, 1320624, 1430676, 1589640, 1650780, 1788345, 1907568, 1980936, 2146014, 2201040, 2384460, 2476170, 2861352, 3179280, 3219021, 3301560, 3576690, 3961872, 4292028, 4768920, 4952340, 5365035, 5722704, 6438042, 6603120, 7153380, 8584056, 9537840, 9904680, 10730070, 12876084, 14306760, 16095105, 17168112, 19809360, 21460140, 25752168, 28613520, 32190210, 42920280, 51504336, 64380420, 85840560, 128760840, 257521680]

約数ペア:

[(1, 257521680), (2, 128760840), (3, 85840560), (4, 64380420), (5, 51504336), (6, 42920280), (8, 32190210), (9, 28613520), (10, 25752168), (12, 21460140), (13, 19809360), (15, 17168112), (16, 16095105), (18, 14306760), (20, 12876084), (24, 10730070), (26, 9904680), (27, 9537840), (30, 8584056), (36, 7153380), (39, 6603120), (40, 6438042), (45, 5722704), (48, 5365035), (52, 4952340), (54, 4768920), (60, 4292028), (65, 3961872), (72, 3576690), (78, 3301560), (80, 3219021), (81, 3179280), (90, 2861352), (104, 2476170), (108, 2384460), (117, 2201040), (120, 2146014), (130, 1980936), (135, 1907568), (144, 1788345), (156, 1650780), (162, 1589640), (180, 1430676), (195, 1320624), (208, 1238085), (216, 1192230), (234, 1100520), (240, 1073007), (243, 1059760), (260, 990468), (270, 953784), (312, 825390), (324, 794820), (351, 733680), (360, 715338), (390, 660312), (405, 635856), (432, 596115), (468, 550260), (486, 529880), (520, 495234), (540, 476892), (585, 440208), (624, 412695), (648, 397410), (702, 366840), (720, 357669), (780, 330156), (810, 317928), (936, 275130), (972, 264940), (1019, 252720), (1040, 247617), (1053, 244560), (1080, 238446), (1170, 220104), (1215, 211952), (1296, 198705), (1404, 183420), (1560, 165078), (1620, 158964), (1755, 146736), (1872, 137565), (1944, 132470), (2038, 126360), (2106, 122280), (2160, 119223), (2340, 110052), (2430, 105976), (2808, 91710), (3057, 84240), (3120, 82539), (3159, 81520), (3240, 79482), (3510, 73368), (3888, 66235), (4076, 63180), (4212, 61140), (4680, 55026), (4860, 52988), (5095, 50544), (5265, 48912), (5616, 45855), (6114, 42120), (6318, 40760), (6480, 39741), (7020, 36684), (8152, 31590), (8424, 30570), (9171, 28080), (9360, 27513), (9720, 26494), (10190, 25272), (10530, 24456), (12228, 21060), (12636, 20380), (13247, 19440), (14040, 18342), (15285, 16848), (15795, 16304)]