257599440

素因数分解:

$2^4\times 3^6\times 5^1\times 7^1\times {\mathrm{631}}^1$

素因数の和:669

約数の個数: 280

約数和(自身を含む): 1027874688

約数和(自身を除く): 770275248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 243, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 486, 504, 540, 560, 567, 630, 631, 648, 720, 729, 756, 810, 840, 945, 972, 1008, 1080, 1134, 1215, 1260, 1262, 1296, 1458, 1512, 1620, 1680, 1701, 1890, 1893, 1944, 2160, 2268, 2430, 2520, 2524, 2835, 2916, 3024, 3155, 3240, 3402, 3645, 3780, 3786, 3888, 4417, 4536, 4860, 5040, 5048, 5103, 5670, 5679, 5832, 6310, 6480, 6804, 7290, 7560, 7572, 8505, 8834, 9072, 9465, 9720, 10096, 10206, 11340, 11358, 11664, 12620, 13251, 13608, 14580, 15120, 15144, 17010, 17037, 17668, 18930, 19440, 20412, 22085, 22680, 22716, 25240, 25515, 26502, 27216, 28395, 29160, 30288, 34020, 34074, 35336, 37860, 39753, 40824, 44170, 45360, 45432, 50480, 51030, 51111, 53004, 56790, 58320, 66255, 68040, 68148, 70672, 75720, 79506, 81648, 85185, 88340, 90864, 102060, 102222, 106008, 113580, 119259, 132510, 136080, 136296, 151440, 153333, 159012, 170370, 176680, 198765, 204120, 204444, 212016, 227160, 238518, 255555, 265020, 272592, 306666, 318024, 340740, 353360, 357777, 397530, 408240, 408888, 454320, 459999, 477036, 511110, 530040, 596295, 613332, 636048, 681480, 715554, 766665, 795060, 817776, 919998, 954072, 1022220, 1060080, 1073331, 1192590, 1226664, 1362960, 1431108, 1533330, 1590120, 1788885, 1839996, 1908144, 2044440, 2146662, 2299995, 2385180, 2453328, 2862216, 3066660, 3180240, 3219993, 3577770, 3679992, 4088880, 4293324, 4599990, 4770360, 5366655, 5724432, 6133320, 6439986, 7155540, 7359984, 8586648, 9199980, 9540720, 10733310, 12266640, 12879972, 14311080, 16099965, 17173296, 18399960, 21466620, 25759944, 28622160, 32199930, 36799920, 42933240, 51519888, 64399860, 85866480, 128799720, 257599440]

約数ペア:

[(1, 257599440), (2, 128799720), (3, 85866480), (4, 64399860), (5, 51519888), (6, 42933240), (7, 36799920), (8, 32199930), (9, 28622160), (10, 25759944), (12, 21466620), (14, 18399960), (15, 17173296), (16, 16099965), (18, 14311080), (20, 12879972), (21, 12266640), (24, 10733310), (27, 9540720), (28, 9199980), (30, 8586648), (35, 7359984), (36, 7155540), (40, 6439986), (42, 6133320), (45, 5724432), (48, 5366655), (54, 4770360), (56, 4599990), (60, 4293324), (63, 4088880), (70, 3679992), (72, 3577770), (80, 3219993), (81, 3180240), (84, 3066660), (90, 2862216), (105, 2453328), (108, 2385180), (112, 2299995), (120, 2146662), (126, 2044440), (135, 1908144), (140, 1839996), (144, 1788885), (162, 1590120), (168, 1533330), (180, 1431108), (189, 1362960), (210, 1226664), (216, 1192590), (240, 1073331), (243, 1060080), (252, 1022220), (270, 954072), (280, 919998), (315, 817776), (324, 795060), (336, 766665), (360, 715554), (378, 681480), (405, 636048), (420, 613332), (432, 596295), (486, 530040), (504, 511110), (540, 477036), (560, 459999), (567, 454320), (630, 408888), (631, 408240), (648, 397530), (720, 357777), (729, 353360), (756, 340740), (810, 318024), (840, 306666), (945, 272592), (972, 265020), (1008, 255555), (1080, 238518), (1134, 227160), (1215, 212016), (1260, 204444), (1262, 204120), (1296, 198765), (1458, 176680), (1512, 170370), (1620, 159012), (1680, 153333), (1701, 151440), (1890, 136296), (1893, 136080), (1944, 132510), (2160, 119259), (2268, 113580), (2430, 106008), (2520, 102222), (2524, 102060), (2835, 90864), (2916, 88340), (3024, 85185), (3155, 81648), (3240, 79506), (3402, 75720), (3645, 70672), (3780, 68148), (3786, 68040), (3888, 66255), (4417, 58320), (4536, 56790), (4860, 53004), (5040, 51111), (5048, 51030), (5103, 50480), (5670, 45432), (5679, 45360), (5832, 44170), (6310, 40824), (6480, 39753), (6804, 37860), (7290, 35336), (7560, 34074), (7572, 34020), (8505, 30288), (8834, 29160), (9072, 28395), (9465, 27216), (9720, 26502), (10096, 25515), (10206, 25240), (11340, 22716), (11358, 22680), (11664, 22085), (12620, 20412), (13251, 19440), (13608, 18930), (14580, 17668), (15120, 17037), (15144, 17010)]