990487708

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{937}}^1\times {\mathrm{1987}}^1$

素因数の和:2954

約数の個数: 48

約数和(自身を含む): 2088513280

約数和(自身を除く): 1098025572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 937, 1874, 1987, 3748, 3974, 6559, 7948, 13118, 13909, 17803, 26236, 27818, 35606, 37753, 55636, 71212, 75506, 124621, 151012, 249242, 264271, 498484, 528542, 1057084, 1861819, 3723638, 7447276, 13032733, 26065466, 35374561, 52130932, 70749122, 141498244, 247621927, 495243854, 990487708]

約数ペア:

[(1, 990487708), (2, 495243854), (4, 247621927), (7, 141498244), (14, 70749122), (19, 52130932), (28, 35374561), (38, 26065466), (76, 13032733), (133, 7447276), (266, 3723638), (532, 1861819), (937, 1057084), (1874, 528542), (1987, 498484), (3748, 264271), (3974, 249242), (6559, 151012), (7948, 124621), (13118, 75506), (13909, 71212), (17803, 55636), (26236, 37753), (27818, 35606)]