2117780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2161}}^1$

素因数の和:2184

約数の個数: 36

約数和(自身を含む): 5175828

約数和(自身を除く): 3058048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2161, 4322, 8644, 10805, 15127, 21610, 30254, 43220, 60508, 75635, 105889, 151270, 211778, 302540, 423556, 529445, 1058890, 2117780]

約数ペア:

[(1, 2117780), (2, 1058890), (4, 529445), (5, 423556), (7, 302540), (10, 211778), (14, 151270), (20, 105889), (28, 75635), (35, 60508), (49, 43220), (70, 30254), (98, 21610), (140, 15127), (196, 10805), (245, 8644), (490, 4322), (980, 2161)]