261665280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:347

約数の個数: 240

約数和(自身を含む): 931674744

約数和(自身を除く): 670009464

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 128, 144, 160, 164, 180, 192, 205, 240, 246, 256, 277, 288, 320, 328, 360, 369, 384, 410, 480, 492, 512, 554, 576, 615, 640, 656, 720, 738, 768, 820, 831, 960, 984, 1108, 1152, 1230, 1280, 1312, 1385, 1440, 1476, 1536, 1640, 1662, 1845, 1920, 1968, 2216, 2304, 2460, 2493, 2560, 2624, 2770, 2880, 2952, 3280, 3324, 3690, 3840, 3936, 4155, 4432, 4608, 4920, 4986, 5248, 5540, 5760, 5904, 6560, 6648, 7380, 7680, 7872, 8310, 8864, 9840, 9972, 10496, 11080, 11357, 11520, 11808, 12465, 13120, 13296, 14760, 15744, 16620, 17728, 19680, 19944, 20992, 22160, 22714, 23040, 23616, 24930, 26240, 26592, 29520, 31488, 33240, 34071, 35456, 39360, 39888, 44320, 45428, 47232, 49860, 52480, 53184, 56785, 59040, 62976, 66480, 68142, 70912, 78720, 79776, 88640, 90856, 94464, 99720, 102213, 104960, 106368, 113570, 118080, 132960, 136284, 141824, 157440, 159552, 170355, 177280, 181712, 188928, 199440, 204426, 212736, 227140, 236160, 265920, 272568, 314880, 319104, 340710, 354560, 363424, 398880, 408852, 425472, 454280, 472320, 511065, 531840, 545136, 638208, 681420, 709120, 726848, 797760, 817704, 908560, 944640, 1022130, 1063680, 1090272, 1276416, 1362840, 1453696, 1595520, 1635408, 1817120, 2044260, 2127360, 2180544, 2725680, 2907392, 3191040, 3270816, 3634240, 4088520, 4361088, 5451360, 5814784, 6382080, 6541632, 7268480, 8177040, 8722176, 10902720, 13083264, 14536960, 16354080, 17444352, 21805440, 26166528, 29073920, 32708160, 43610880, 52333056, 65416320, 87221760, 130832640, 261665280]

約数ペア:

[(1, 261665280), (2, 130832640), (3, 87221760), (4, 65416320), (5, 52333056), (6, 43610880), (8, 32708160), (9, 29073920), (10, 26166528), (12, 21805440), (15, 17444352), (16, 16354080), (18, 14536960), (20, 13083264), (24, 10902720), (30, 8722176), (32, 8177040), (36, 7268480), (40, 6541632), (41, 6382080), (45, 5814784), (48, 5451360), (60, 4361088), (64, 4088520), (72, 3634240), (80, 3270816), (82, 3191040), (90, 2907392), (96, 2725680), (120, 2180544), (123, 2127360), (128, 2044260), (144, 1817120), (160, 1635408), (164, 1595520), (180, 1453696), (192, 1362840), (205, 1276416), (240, 1090272), (246, 1063680), (256, 1022130), (277, 944640), (288, 908560), (320, 817704), (328, 797760), (360, 726848), (369, 709120), (384, 681420), (410, 638208), (480, 545136), (492, 531840), (512, 511065), (554, 472320), (576, 454280), (615, 425472), (640, 408852), (656, 398880), (720, 363424), (738, 354560), (768, 340710), (820, 319104), (831, 314880), (960, 272568), (984, 265920), (1108, 236160), (1152, 227140), (1230, 212736), (1280, 204426), (1312, 199440), (1385, 188928), (1440, 181712), (1476, 177280), (1536, 170355), (1640, 159552), (1662, 157440), (1845, 141824), (1920, 136284), (1968, 132960), (2216, 118080), (2304, 113570), (2460, 106368), (2493, 104960), (2560, 102213), (2624, 99720), (2770, 94464), (2880, 90856), (2952, 88640), (3280, 79776), (3324, 78720), (3690, 70912), (3840, 68142), (3936, 66480), (4155, 62976), (4432, 59040), (4608, 56785), (4920, 53184), (4986, 52480), (5248, 49860), (5540, 47232), (5760, 45428), (5904, 44320), (6560, 39888), (6648, 39360), (7380, 35456), (7680, 34071), (7872, 33240), (8310, 31488), (8864, 29520), (9840, 26592), (9972, 26240), (10496, 24930), (11080, 23616), (11357, 23040), (11520, 22714), (11808, 22160), (12465, 20992), (13120, 19944), (13296, 19680), (14760, 17728), (15744, 16620)]