255363840

素因数分解:

$2^8\times 3^5\times 5^1\times {\mathrm{821}}^1$

素因数の和:857

約数の個数: 216

約数和(自身を含む): 917371728

約数和(自身を除く): 662007888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 768, 810, 821, 864, 960, 972, 1080, 1152, 1215, 1280, 1296, 1440, 1620, 1642, 1728, 1920, 1944, 2160, 2304, 2430, 2463, 2592, 2880, 3240, 3284, 3456, 3840, 3888, 4105, 4320, 4860, 4926, 5184, 5760, 6480, 6568, 6912, 7389, 7776, 8210, 8640, 9720, 9852, 10368, 11520, 12315, 12960, 13136, 14778, 15552, 16420, 17280, 19440, 19704, 20736, 22167, 24630, 25920, 26272, 29556, 31104, 32840, 34560, 36945, 38880, 39408, 44334, 49260, 51840, 52544, 59112, 62208, 65680, 66501, 73890, 77760, 78816, 88668, 98520, 103680, 105088, 110835, 118224, 131360, 133002, 147780, 155520, 157632, 177336, 197040, 199503, 210176, 221670, 236448, 262720, 266004, 295560, 311040, 315264, 332505, 354672, 394080, 399006, 443340, 472896, 525440, 532008, 591120, 630528, 665010, 709344, 788160, 798012, 886680, 945792, 997515, 1050880, 1064016, 1182240, 1330020, 1418688, 1576320, 1596024, 1773360, 1891584, 1995030, 2128032, 2364480, 2660040, 2837376, 3152640, 3192048, 3546720, 3990060, 4256064, 4728960, 5320080, 5674752, 6384096, 7093440, 7980120, 8512128, 9457920, 10640160, 12768192, 14186880, 15960240, 17024256, 21280320, 25536384, 28373760, 31920480, 42560640, 51072768, 63840960, 85121280, 127681920, 255363840]

約数ペア:

[(1, 255363840), (2, 127681920), (3, 85121280), (4, 63840960), (5, 51072768), (6, 42560640), (8, 31920480), (9, 28373760), (10, 25536384), (12, 21280320), (15, 17024256), (16, 15960240), (18, 14186880), (20, 12768192), (24, 10640160), (27, 9457920), (30, 8512128), (32, 7980120), (36, 7093440), (40, 6384096), (45, 5674752), (48, 5320080), (54, 4728960), (60, 4256064), (64, 3990060), (72, 3546720), (80, 3192048), (81, 3152640), (90, 2837376), (96, 2660040), (108, 2364480), (120, 2128032), (128, 1995030), (135, 1891584), (144, 1773360), (160, 1596024), (162, 1576320), (180, 1418688), (192, 1330020), (216, 1182240), (240, 1064016), (243, 1050880), (256, 997515), (270, 945792), (288, 886680), (320, 798012), (324, 788160), (360, 709344), (384, 665010), (405, 630528), (432, 591120), (480, 532008), (486, 525440), (540, 472896), (576, 443340), (640, 399006), (648, 394080), (720, 354672), (768, 332505), (810, 315264), (821, 311040), (864, 295560), (960, 266004), (972, 262720), (1080, 236448), (1152, 221670), (1215, 210176), (1280, 199503), (1296, 197040), (1440, 177336), (1620, 157632), (1642, 155520), (1728, 147780), (1920, 133002), (1944, 131360), (2160, 118224), (2304, 110835), (2430, 105088), (2463, 103680), (2592, 98520), (2880, 88668), (3240, 78816), (3284, 77760), (3456, 73890), (3840, 66501), (3888, 65680), (4105, 62208), (4320, 59112), (4860, 52544), (4926, 51840), (5184, 49260), (5760, 44334), (6480, 39408), (6568, 38880), (6912, 36945), (7389, 34560), (7776, 32840), (8210, 31104), (8640, 29556), (9720, 26272), (9852, 25920), (10368, 24630), (11520, 22167), (12315, 20736), (12960, 19704), (13136, 19440), (14778, 17280), (15552, 16420)]