257659920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{17041}}^1$

素因数の和:17070

約数の個数: 160

約数和(自身を含む): 1014339840

約数和(自身を除く): 756679920

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, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 17041, 34082, 51123, 68164, 85205, 102246, 119287, 136328, 153369, 170410, 204492, 238574, 255615, 272656, 306738, 340820, 357861, 408984, 460107, 477148, 511230, 596435, 613476, 681640, 715722, 766845, 817968, 920214, 954296, 1022460, 1073583, 1192870, 1226952, 1363280, 1431444, 1533690, 1789305, 1840428, 1908592, 2044920, 2147166, 2300535, 2385740, 2453904, 2862888, 3067380, 3220749, 3578610, 3680856, 4089840, 4294332, 4601070, 4771480, 5367915, 5725776, 6134760, 6441498, 7157220, 7361712, 8588664, 9202140, 9542960, 10735830, 12269520, 12882996, 14314440, 16103745, 17177328, 18404280, 21471660, 25765992, 28628880, 32207490, 36808560, 42943320, 51531984, 64414980, 85886640, 128829960, 257659920]

約数ペア:

[(1, 257659920), (2, 128829960), (3, 85886640), (4, 64414980), (5, 51531984), (6, 42943320), (7, 36808560), (8, 32207490), (9, 28628880), (10, 25765992), (12, 21471660), (14, 18404280), (15, 17177328), (16, 16103745), (18, 14314440), (20, 12882996), (21, 12269520), (24, 10735830), (27, 9542960), (28, 9202140), (30, 8588664), (35, 7361712), (36, 7157220), (40, 6441498), (42, 6134760), (45, 5725776), (48, 5367915), (54, 4771480), (56, 4601070), (60, 4294332), (63, 4089840), (70, 3680856), (72, 3578610), (80, 3220749), (84, 3067380), (90, 2862888), (105, 2453904), (108, 2385740), (112, 2300535), (120, 2147166), (126, 2044920), (135, 1908592), (140, 1840428), (144, 1789305), (168, 1533690), (180, 1431444), (189, 1363280), (210, 1226952), (216, 1192870), (240, 1073583), (252, 1022460), (270, 954296), (280, 920214), (315, 817968), (336, 766845), (360, 715722), (378, 681640), (420, 613476), (432, 596435), (504, 511230), (540, 477148), (560, 460107), (630, 408984), (720, 357861), (756, 340820), (840, 306738), (945, 272656), (1008, 255615), (1080, 238574), (1260, 204492), (1512, 170410), (1680, 153369), (1890, 136328), (2160, 119287), (2520, 102246), (3024, 85205), (3780, 68164), (5040, 51123), (7560, 34082), (15120, 17041)]