1620080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:294

約数の個数: 80

約数和(自身を含む): 4713984

約数和(自身を除く): 3093904

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 263, 280, 308, 385, 440, 526, 560, 616, 770, 880, 1052, 1232, 1315, 1540, 1841, 2104, 2630, 2893, 3080, 3682, 4208, 5260, 5786, 6160, 7364, 9205, 10520, 11572, 14465, 14728, 18410, 20251, 21040, 23144, 28930, 29456, 36820, 40502, 46288, 57860, 73640, 81004, 101255, 115720, 147280, 162008, 202510, 231440, 324016, 405020, 810040, 1620080]

約数ペア:

[(1, 1620080), (2, 810040), (4, 405020), (5, 324016), (7, 231440), (8, 202510), (10, 162008), (11, 147280), (14, 115720), (16, 101255), (20, 81004), (22, 73640), (28, 57860), (35, 46288), (40, 40502), (44, 36820), (55, 29456), (56, 28930), (70, 23144), (77, 21040), (80, 20251), (88, 18410), (110, 14728), (112, 14465), (140, 11572), (154, 10520), (176, 9205), (220, 7364), (263, 6160), (280, 5786), (308, 5260), (385, 4208), (440, 3682), (526, 3080), (560, 2893), (616, 2630), (770, 2104), (880, 1841), (1052, 1540), (1232, 1315)]