66205440

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{821}}^1$

素因数の和:855

約数の個数: 216

約数和(自身を含む): 262106208

約数和(自身を除く): 195900768

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, 560, 576, 630, 640, 672, 720, 768, 821, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1642, 1680, 1792, 1920, 2016, 2240, 2304, 2463, 2520, 2688, 2880, 3284, 3360, 3840, 4032, 4105, 4480, 4926, 5040, 5376, 5747, 5760, 6568, 6720, 7389, 8064, 8210, 8960, 9852, 10080, 11494, 11520, 12315, 13136, 13440, 14778, 16128, 16420, 17241, 19704, 20160, 22988, 24630, 26272, 26880, 28735, 29556, 32840, 34482, 36945, 39408, 40320, 45976, 49260, 51723, 52544, 57470, 59112, 65680, 68964, 73890, 78816, 80640, 86205, 91952, 98520, 103446, 105088, 114940, 118224, 131360, 137928, 147780, 157632, 172410, 183904, 197040, 206892, 210176, 229880, 236448, 258615, 262720, 275856, 295560, 315264, 344820, 367808, 394080, 413784, 459760, 472896, 517230, 525440, 551712, 591120, 630528, 689640, 735616, 788160, 827568, 919520, 945792, 1034460, 1050880, 1103424, 1182240, 1379280, 1471232, 1576320, 1655136, 1839040, 1891584, 2068920, 2206848, 2364480, 2758560, 3152640, 3310272, 3678080, 4137840, 4413696, 4728960, 5517120, 6620544, 7356160, 8275680, 9457920, 11034240, 13241088, 16551360, 22068480, 33102720, 66205440]

約数ペア:

[(1, 66205440), (2, 33102720), (3, 22068480), (4, 16551360), (5, 13241088), (6, 11034240), (7, 9457920), (8, 8275680), (9, 7356160), (10, 6620544), (12, 5517120), (14, 4728960), (15, 4413696), (16, 4137840), (18, 3678080), (20, 3310272), (21, 3152640), (24, 2758560), (28, 2364480), (30, 2206848), (32, 2068920), (35, 1891584), (36, 1839040), (40, 1655136), (42, 1576320), (45, 1471232), (48, 1379280), (56, 1182240), (60, 1103424), (63, 1050880), (64, 1034460), (70, 945792), (72, 919520), (80, 827568), (84, 788160), (90, 735616), (96, 689640), (105, 630528), (112, 591120), (120, 551712), (126, 525440), (128, 517230), (140, 472896), (144, 459760), (160, 413784), (168, 394080), (180, 367808), (192, 344820), (210, 315264), (224, 295560), (240, 275856), (252, 262720), (256, 258615), (280, 236448), (288, 229880), (315, 210176), (320, 206892), (336, 197040), (360, 183904), (384, 172410), (420, 157632), (448, 147780), (480, 137928), (504, 131360), (560, 118224), (576, 114940), (630, 105088), (640, 103446), (672, 98520), (720, 91952), (768, 86205), (821, 80640), (840, 78816), (896, 73890), (960, 68964), (1008, 65680), (1120, 59112), (1152, 57470), (1260, 52544), (1280, 51723), (1344, 49260), (1440, 45976), (1642, 40320), (1680, 39408), (1792, 36945), (1920, 34482), (2016, 32840), (2240, 29556), (2304, 28735), (2463, 26880), (2520, 26272), (2688, 24630), (2880, 22988), (3284, 20160), (3360, 19704), (3840, 17241), (4032, 16420), (4105, 16128), (4480, 14778), (4926, 13440), (5040, 13136), (5376, 12315), (5747, 11520), (5760, 11494), (6568, 10080), (6720, 9852), (7389, 8960), (8064, 8210)]