16640140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1759}}^1$

素因数の和:1822

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 22389620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1759, 1892, 2365, 3518, 4730, 7036, 8795, 9460, 17590, 19349, 35180, 38698, 75637, 77396, 96745, 151274, 193490, 302548, 378185, 386980, 756370, 832007, 1512740, 1664014, 3328028, 4160035, 8320070, 16640140]

約数ペア:

[(1, 16640140), (2, 8320070), (4, 4160035), (5, 3328028), (10, 1664014), (11, 1512740), (20, 832007), (22, 756370), (43, 386980), (44, 378185), (55, 302548), (86, 193490), (110, 151274), (172, 96745), (215, 77396), (220, 75637), (430, 38698), (473, 35180), (860, 19349), (946, 17590), (1759, 9460), (1892, 8795), (2365, 7036), (3518, 4730)]