256757760

素因数分解:

$2^{12}\times 3^2\times 5^1\times 7^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 312

約数和(自身を含む): 1022236800

約数和(自身を除く): 765479040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 199, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 398, 420, 448, 480, 504, 512, 560, 576, 597, 630, 640, 672, 720, 768, 796, 840, 896, 960, 995, 1008, 1024, 1120, 1152, 1194, 1260, 1280, 1344, 1393, 1440, 1536, 1592, 1680, 1791, 1792, 1920, 1990, 2016, 2048, 2240, 2304, 2388, 2520, 2560, 2688, 2786, 2880, 2985, 3072, 3184, 3360, 3582, 3584, 3840, 3980, 4032, 4096, 4179, 4480, 4608, 4776, 5040, 5120, 5376, 5572, 5760, 5970, 6144, 6368, 6720, 6965, 7164, 7168, 7680, 7960, 8064, 8358, 8955, 8960, 9216, 9552, 10080, 10240, 10752, 11144, 11520, 11940, 12288, 12537, 12736, 13440, 13930, 14328, 14336, 15360, 15920, 16128, 16716, 17910, 17920, 18432, 19104, 20160, 20480, 20895, 21504, 22288, 23040, 23880, 25074, 25472, 26880, 27860, 28656, 28672, 30720, 31840, 32256, 33432, 35820, 35840, 36864, 38208, 40320, 41790, 43008, 44576, 46080, 47760, 50148, 50944, 53760, 55720, 57312, 61440, 62685, 63680, 64512, 66864, 71640, 71680, 76416, 80640, 83580, 86016, 89152, 92160, 95520, 100296, 101888, 107520, 111440, 114624, 125370, 127360, 129024, 133728, 143280, 143360, 152832, 161280, 167160, 178304, 184320, 191040, 200592, 203776, 215040, 222880, 229248, 250740, 254720, 258048, 267456, 286560, 305664, 322560, 334320, 356608, 382080, 401184, 407552, 430080, 445760, 458496, 501480, 509440, 534912, 573120, 611328, 645120, 668640, 713216, 764160, 802368, 815104, 891520, 916992, 1002960, 1018880, 1069824, 1146240, 1222656, 1290240, 1337280, 1426432, 1528320, 1604736, 1783040, 1833984, 2005920, 2037760, 2139648, 2292480, 2445312, 2674560, 2852864, 3056640, 3209472, 3566080, 3667968, 4011840, 4075520, 4279296, 4584960, 5349120, 5705728, 6113280, 6418944, 7132160, 7335936, 8023680, 8558592, 9169920, 10698240, 12226560, 12837888, 14264320, 16047360, 17117184, 18339840, 21396480, 25675776, 28528640, 32094720, 36679680, 42792960, 51351552, 64189440, 85585920, 128378880, 256757760]

約数ペア:

[(1, 256757760), (2, 128378880), (3, 85585920), (4, 64189440), (5, 51351552), (6, 42792960), (7, 36679680), (8, 32094720), (9, 28528640), (10, 25675776), (12, 21396480), (14, 18339840), (15, 17117184), (16, 16047360), (18, 14264320), (20, 12837888), (21, 12226560), (24, 10698240), (28, 9169920), (30, 8558592), (32, 8023680), (35, 7335936), (36, 7132160), (40, 6418944), (42, 6113280), (45, 5705728), (48, 5349120), (56, 4584960), (60, 4279296), (63, 4075520), (64, 4011840), (70, 3667968), (72, 3566080), (80, 3209472), (84, 3056640), (90, 2852864), (96, 2674560), (105, 2445312), (112, 2292480), (120, 2139648), (126, 2037760), (128, 2005920), (140, 1833984), (144, 1783040), (160, 1604736), (168, 1528320), (180, 1426432), (192, 1337280), (199, 1290240), (210, 1222656), (224, 1146240), (240, 1069824), (252, 1018880), (256, 1002960), (280, 916992), (288, 891520), (315, 815104), (320, 802368), (336, 764160), (360, 713216), (384, 668640), (398, 645120), (420, 611328), (448, 573120), (480, 534912), (504, 509440), (512, 501480), (560, 458496), (576, 445760), (597, 430080), (630, 407552), (640, 401184), (672, 382080), (720, 356608), (768, 334320), (796, 322560), (840, 305664), (896, 286560), (960, 267456), (995, 258048), (1008, 254720), (1024, 250740), (1120, 229248), (1152, 222880), (1194, 215040), (1260, 203776), (1280, 200592), (1344, 191040), (1393, 184320), (1440, 178304), (1536, 167160), (1592, 161280), (1680, 152832), (1791, 143360), (1792, 143280), (1920, 133728), (1990, 129024), (2016, 127360), (2048, 125370), (2240, 114624), (2304, 111440), (2388, 107520), (2520, 101888), (2560, 100296), (2688, 95520), (2786, 92160), (2880, 89152), (2985, 86016), (3072, 83580), (3184, 80640), (3360, 76416), (3582, 71680), (3584, 71640), (3840, 66864), (3980, 64512), (4032, 63680), (4096, 62685), (4179, 61440), (4480, 57312), (4608, 55720), (4776, 53760), (5040, 50944), (5120, 50148), (5376, 47760), (5572, 46080), (5760, 44576), (5970, 43008), (6144, 41790), (6368, 40320), (6720, 38208), (6965, 36864), (7164, 35840), (7168, 35820), (7680, 33432), (7960, 32256), (8064, 31840), (8358, 30720), (8955, 28672), (8960, 28656), (9216, 27860), (9552, 26880), (10080, 25472), (10240, 25074), (10752, 23880), (11144, 23040), (11520, 22288), (11940, 21504), (12288, 20895), (12537, 20480), (12736, 20160), (13440, 19104), (13930, 18432), (14328, 17920), (14336, 17910), (15360, 16716), (15920, 16128)]