25921280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 77704704

約数和(自身を除く): 51783424

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 263, 280, 308, 320, 352, 385, 440, 448, 526, 560, 616, 640, 704, 770, 880, 896, 1052, 1120, 1232, 1280, 1315, 1408, 1540, 1760, 1792, 1841, 2104, 2240, 2464, 2630, 2816, 2893, 3080, 3520, 3682, 4208, 4480, 4928, 5260, 5786, 6160, 7040, 7364, 8416, 8960, 9205, 9856, 10520, 11572, 12320, 14080, 14465, 14728, 16832, 18410, 19712, 20251, 21040, 23144, 24640, 28930, 29456, 33664, 36820, 40502, 42080, 46288, 49280, 57860, 58912, 67328, 73640, 81004, 84160, 92576, 98560, 101255, 115720, 117824, 147280, 162008, 168320, 185152, 202510, 231440, 235648, 294560, 324016, 336640, 370304, 405020, 462880, 471296, 589120, 648032, 740608, 810040, 925760, 1178240, 1296064, 1620080, 1851520, 2356480, 2592128, 3240160, 3703040, 5184256, 6480320, 12960640, 25921280]

約数ペア:

[(1, 25921280), (2, 12960640), (4, 6480320), (5, 5184256), (7, 3703040), (8, 3240160), (10, 2592128), (11, 2356480), (14, 1851520), (16, 1620080), (20, 1296064), (22, 1178240), (28, 925760), (32, 810040), (35, 740608), (40, 648032), (44, 589120), (55, 471296), (56, 462880), (64, 405020), (70, 370304), (77, 336640), (80, 324016), (88, 294560), (110, 235648), (112, 231440), (128, 202510), (140, 185152), (154, 168320), (160, 162008), (176, 147280), (220, 117824), (224, 115720), (256, 101255), (263, 98560), (280, 92576), (308, 84160), (320, 81004), (352, 73640), (385, 67328), (440, 58912), (448, 57860), (526, 49280), (560, 46288), (616, 42080), (640, 40502), (704, 36820), (770, 33664), (880, 29456), (896, 28930), (1052, 24640), (1120, 23144), (1232, 21040), (1280, 20251), (1315, 19712), (1408, 18410), (1540, 16832), (1760, 14728), (1792, 14465), (1841, 14080), (2104, 12320), (2240, 11572), (2464, 10520), (2630, 9856), (2816, 9205), (2893, 8960), (3080, 8416), (3520, 7364), (3682, 7040), (4208, 6160), (4480, 5786), (4928, 5260)]