256573440

素因数分解:

$2^{16}\times 3^3\times 5^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 272

約数和(自身を含む): 943711200

約数和(自身を除く): 687137760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 64, 72, 80, 87, 90, 96, 108, 116, 120, 128, 135, 144, 145, 160, 174, 180, 192, 216, 232, 240, 256, 261, 270, 288, 290, 320, 348, 360, 384, 432, 435, 464, 480, 512, 522, 540, 576, 580, 640, 696, 720, 768, 783, 864, 870, 928, 960, 1024, 1044, 1080, 1152, 1160, 1280, 1305, 1392, 1440, 1536, 1566, 1728, 1740, 1856, 1920, 2048, 2088, 2160, 2304, 2320, 2560, 2610, 2784, 2880, 3072, 3132, 3456, 3480, 3712, 3840, 3915, 4096, 4176, 4320, 4608, 4640, 5120, 5220, 5568, 5760, 6144, 6264, 6912, 6960, 7424, 7680, 7830, 8192, 8352, 8640, 9216, 9280, 10240, 10440, 11136, 11520, 12288, 12528, 13824, 13920, 14848, 15360, 15660, 16384, 16704, 17280, 18432, 18560, 20480, 20880, 22272, 23040, 24576, 25056, 27648, 27840, 29696, 30720, 31320, 32768, 33408, 34560, 36864, 37120, 40960, 41760, 44544, 46080, 49152, 50112, 55296, 55680, 59392, 61440, 62640, 65536, 66816, 69120, 73728, 74240, 81920, 83520, 89088, 92160, 98304, 100224, 110592, 111360, 118784, 122880, 125280, 133632, 138240, 147456, 148480, 163840, 167040, 178176, 184320, 196608, 200448, 221184, 222720, 237568, 245760, 250560, 267264, 276480, 294912, 296960, 327680, 334080, 356352, 368640, 400896, 442368, 445440, 475136, 491520, 501120, 534528, 552960, 589824, 593920, 668160, 712704, 737280, 801792, 884736, 890880, 950272, 983040, 1002240, 1069056, 1105920, 1187840, 1336320, 1425408, 1474560, 1603584, 1769472, 1781760, 1900544, 2004480, 2138112, 2211840, 2375680, 2672640, 2850816, 2949120, 3207168, 3563520, 4008960, 4276224, 4423680, 4751360, 5345280, 5701632, 6414336, 7127040, 8017920, 8552448, 8847360, 9502720, 10690560, 12828672, 14254080, 16035840, 17104896, 21381120, 25657344, 28508160, 32071680, 42762240, 51314688, 64143360, 85524480, 128286720, 256573440]

約数ペア:

[(1, 256573440), (2, 128286720), (3, 85524480), (4, 64143360), (5, 51314688), (6, 42762240), (8, 32071680), (9, 28508160), (10, 25657344), (12, 21381120), (15, 17104896), (16, 16035840), (18, 14254080), (20, 12828672), (24, 10690560), (27, 9502720), (29, 8847360), (30, 8552448), (32, 8017920), (36, 7127040), (40, 6414336), (45, 5701632), (48, 5345280), (54, 4751360), (58, 4423680), (60, 4276224), (64, 4008960), (72, 3563520), (80, 3207168), (87, 2949120), (90, 2850816), (96, 2672640), (108, 2375680), (116, 2211840), (120, 2138112), (128, 2004480), (135, 1900544), (144, 1781760), (145, 1769472), (160, 1603584), (174, 1474560), (180, 1425408), (192, 1336320), (216, 1187840), (232, 1105920), (240, 1069056), (256, 1002240), (261, 983040), (270, 950272), (288, 890880), (290, 884736), (320, 801792), (348, 737280), (360, 712704), (384, 668160), (432, 593920), (435, 589824), (464, 552960), (480, 534528), (512, 501120), (522, 491520), (540, 475136), (576, 445440), (580, 442368), (640, 400896), (696, 368640), (720, 356352), (768, 334080), (783, 327680), (864, 296960), (870, 294912), (928, 276480), (960, 267264), (1024, 250560), (1044, 245760), (1080, 237568), (1152, 222720), (1160, 221184), (1280, 200448), (1305, 196608), (1392, 184320), (1440, 178176), (1536, 167040), (1566, 163840), (1728, 148480), (1740, 147456), (1856, 138240), (1920, 133632), (2048, 125280), (2088, 122880), (2160, 118784), (2304, 111360), (2320, 110592), (2560, 100224), (2610, 98304), (2784, 92160), (2880, 89088), (3072, 83520), (3132, 81920), (3456, 74240), (3480, 73728), (3712, 69120), (3840, 66816), (3915, 65536), (4096, 62640), (4176, 61440), (4320, 59392), (4608, 55680), (4640, 55296), (5120, 50112), (5220, 49152), (5568, 46080), (5760, 44544), (6144, 41760), (6264, 40960), (6912, 37120), (6960, 36864), (7424, 34560), (7680, 33408), (7830, 32768), (8192, 31320), (8352, 30720), (8640, 29696), (9216, 27840), (9280, 27648), (10240, 25056), (10440, 24576), (11136, 23040), (11520, 22272), (12288, 20880), (12528, 20480), (13824, 18560), (13920, 18432), (14848, 17280), (15360, 16704), (15660, 16384)]