20751736320

素因数分解:

$2^9\times 3^2\times 5^1\times 7^1\times {\mathrm{128669}}^1$

素因数の和:128705

約数の個数: 240

約数和(自身を含む): 82136751840

約数和(自身を除く): 61385015520

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, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5376, 5760, 6720, 7680, 8064, 8960, 10080, 10752, 11520, 13440, 16128, 17920, 20160, 23040, 26880, 32256, 40320, 53760, 80640, 128669, 161280, 257338, 386007, 514676, 643345, 772014, 900683, 1029352, 1158021, 1286690, 1544028, 1801366, 1930035, 2058704, 2316042, 2573380, 2702049, 3088056, 3602732, 3860070, 4117408, 4503415, 4632084, 5146760, 5404098, 5790105, 6176112, 7205464, 7720140, 8106147, 8234816, 9006830, 9264168, 10293520, 10808196, 11580210, 12352224, 13510245, 14410928, 15440280, 16212294, 16469632, 18013660, 18528336, 20587040, 21616392, 23160420, 24704448, 27020490, 28821856, 30880560, 32424588, 32939264, 36027320, 37056672, 40530735, 41174080, 43232784, 46320840, 49408896, 54040980, 57643712, 61761120, 64849176, 65878528, 72054640, 74113344, 81061470, 82348160, 86465568, 92641680, 98817792, 108081960, 115287424, 123522240, 129698352, 144109280, 148226688, 162122940, 164696320, 172931136, 185283360, 197635584, 216163920, 230574848, 247044480, 259396704, 288218560, 296453376, 324245880, 329392640, 345862272, 370566720, 432327840, 461149696, 494088960, 518793408, 576437120, 592906752, 648491760, 691724544, 741133440, 864655680, 988177920, 1037586816, 1152874240, 1296983520, 1383449088, 1482266880, 1729311360, 2075173632, 2305748480, 2593967040, 2964533760, 3458622720, 4150347264, 5187934080, 6917245440, 10375868160, 20751736320]

約数ペア:

[(1, 20751736320), (2, 10375868160), (3, 6917245440), (4, 5187934080), (5, 4150347264), (6, 3458622720), (7, 2964533760), (8, 2593967040), (9, 2305748480), (10, 2075173632), (12, 1729311360), (14, 1482266880), (15, 1383449088), (16, 1296983520), (18, 1152874240), (20, 1037586816), (21, 988177920), (24, 864655680), (28, 741133440), (30, 691724544), (32, 648491760), (35, 592906752), (36, 576437120), (40, 518793408), (42, 494088960), (45, 461149696), (48, 432327840), (56, 370566720), (60, 345862272), (63, 329392640), (64, 324245880), (70, 296453376), (72, 288218560), (80, 259396704), (84, 247044480), (90, 230574848), (96, 216163920), (105, 197635584), (112, 185283360), (120, 172931136), (126, 164696320), (128, 162122940), (140, 148226688), (144, 144109280), (160, 129698352), (168, 123522240), (180, 115287424), (192, 108081960), (210, 98817792), (224, 92641680), (240, 86465568), (252, 82348160), (256, 81061470), (280, 74113344), (288, 72054640), (315, 65878528), (320, 64849176), (336, 61761120), (360, 57643712), (384, 54040980), (420, 49408896), (448, 46320840), (480, 43232784), (504, 41174080), (512, 40530735), (560, 37056672), (576, 36027320), (630, 32939264), (640, 32424588), (672, 30880560), (720, 28821856), (768, 27020490), (840, 24704448), (896, 23160420), (960, 21616392), (1008, 20587040), (1120, 18528336), (1152, 18013660), (1260, 16469632), (1280, 16212294), (1344, 15440280), (1440, 14410928), (1536, 13510245), (1680, 12352224), (1792, 11580210), (1920, 10808196), (2016, 10293520), (2240, 9264168), (2304, 9006830), (2520, 8234816), (2560, 8106147), (2688, 7720140), (2880, 7205464), (3360, 6176112), (3584, 5790105), (3840, 5404098), (4032, 5146760), (4480, 4632084), (4608, 4503415), (5040, 4117408), (5376, 3860070), (5760, 3602732), (6720, 3088056), (7680, 2702049), (8064, 2573380), (8960, 2316042), (10080, 2058704), (10752, 1930035), (11520, 1801366), (13440, 1544028), (16128, 1286690), (17920, 1158021), (20160, 1029352), (23040, 900683), (26880, 772014), (32256, 643345), (40320, 514676), (53760, 386007), (80640, 257338), (128669, 161280)]