810040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 2280960

約数和(自身を除く): 1470920

約数列:

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

約数ペア:

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