1640862720

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{5087}}^1$

素因数の和:5125

約数の個数: 264

約数和(自身を含む): 6499044864

約数和(自身を除く): 4858182144

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, 1024, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3072, 3360, 3584, 3840, 4032, 4480, 4608, 5040, 5087, 5120, 5376, 5760, 6720, 7168, 7680, 8064, 8960, 9216, 10080, 10174, 10752, 11520, 13440, 15261, 15360, 16128, 17920, 20160, 20348, 21504, 23040, 25435, 26880, 30522, 32256, 35609, 35840, 40320, 40696, 45783, 46080, 50870, 53760, 61044, 64512, 71218, 76305, 80640, 81392, 91566, 101740, 106827, 107520, 122088, 142436, 152610, 161280, 162784, 178045, 183132, 203480, 213654, 228915, 244176, 284872, 305220, 320481, 322560, 325568, 356090, 366264, 406960, 427308, 457830, 488352, 534135, 569744, 610440, 640962, 651136, 712180, 732528, 813920, 854616, 915660, 976704, 1068270, 1139488, 1220880, 1281924, 1302272, 1424360, 1465056, 1602405, 1627840, 1709232, 1831320, 1953408, 2136540, 2278976, 2441760, 2563848, 2604544, 2848720, 2930112, 3204810, 3255680, 3418464, 3662640, 3906816, 4273080, 4557952, 4883520, 5127696, 5209088, 5697440, 5860224, 6409620, 6511360, 6836928, 7325280, 7813632, 8546160, 9115904, 9767040, 10255392, 11394880, 11720448, 12819240, 13022720, 13673856, 14650560, 15627264, 17092320, 18231808, 19534080, 20510784, 22789760, 23440896, 25638480, 26045440, 27347712, 29301120, 34184640, 36463616, 39068160, 41021568, 45579520, 46881792, 51276960, 54695424, 58602240, 68369280, 78136320, 82043136, 91159040, 102553920, 109390848, 117204480, 136738560, 164086272, 182318080, 205107840, 234408960, 273477120, 328172544, 410215680, 546954240, 820431360, 1640862720]

約数ペア:

[(1, 1640862720), (2, 820431360), (3, 546954240), (4, 410215680), (5, 328172544), (6, 273477120), (7, 234408960), (8, 205107840), (9, 182318080), (10, 164086272), (12, 136738560), (14, 117204480), (15, 109390848), (16, 102553920), (18, 91159040), (20, 82043136), (21, 78136320), (24, 68369280), (28, 58602240), (30, 54695424), (32, 51276960), (35, 46881792), (36, 45579520), (40, 41021568), (42, 39068160), (45, 36463616), (48, 34184640), (56, 29301120), (60, 27347712), (63, 26045440), (64, 25638480), (70, 23440896), (72, 22789760), (80, 20510784), (84, 19534080), (90, 18231808), (96, 17092320), (105, 15627264), (112, 14650560), (120, 13673856), (126, 13022720), (128, 12819240), (140, 11720448), (144, 11394880), (160, 10255392), (168, 9767040), (180, 9115904), (192, 8546160), (210, 7813632), (224, 7325280), (240, 6836928), (252, 6511360), (256, 6409620), (280, 5860224), (288, 5697440), (315, 5209088), (320, 5127696), (336, 4883520), (360, 4557952), (384, 4273080), (420, 3906816), (448, 3662640), (480, 3418464), (504, 3255680), (512, 3204810), (560, 2930112), (576, 2848720), (630, 2604544), (640, 2563848), (672, 2441760), (720, 2278976), (768, 2136540), (840, 1953408), (896, 1831320), (960, 1709232), (1008, 1627840), (1024, 1602405), (1120, 1465056), (1152, 1424360), (1260, 1302272), (1280, 1281924), (1344, 1220880), (1440, 1139488), (1536, 1068270), (1680, 976704), (1792, 915660), (1920, 854616), (2016, 813920), (2240, 732528), (2304, 712180), (2520, 651136), (2560, 640962), (2688, 610440), (2880, 569744), (3072, 534135), (3360, 488352), (3584, 457830), (3840, 427308), (4032, 406960), (4480, 366264), (4608, 356090), (5040, 325568), (5087, 322560), (5120, 320481), (5376, 305220), (5760, 284872), (6720, 244176), (7168, 228915), (7680, 213654), (8064, 203480), (8960, 183132), (9216, 178045), (10080, 162784), (10174, 161280), (10752, 152610), (11520, 142436), (13440, 122088), (15261, 107520), (15360, 106827), (16128, 101740), (17920, 91566), (20160, 81392), (20348, 80640), (21504, 76305), (23040, 71218), (25435, 64512), (26880, 61044), (30522, 53760), (32256, 50870), (35609, 46080), (35840, 45783), (40320, 40696)]