66408640

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1493}}^1$

素因数の和:1649

約数の個数: 56

約数和(自身を含む): 159379920

約数和(自身を除く): 92971280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 1493, 2224, 2780, 2986, 4448, 5560, 5972, 7465, 8896, 11120, 11944, 14930, 22240, 23888, 29860, 44480, 47776, 59720, 95552, 119440, 207527, 238880, 415054, 477760, 830108, 1037635, 1660216, 2075270, 3320432, 4150540, 6640864, 8301080, 13281728, 16602160, 33204320, 66408640]

約数ペア:

[(1, 66408640), (2, 33204320), (4, 16602160), (5, 13281728), (8, 8301080), (10, 6640864), (16, 4150540), (20, 3320432), (32, 2075270), (40, 1660216), (64, 1037635), (80, 830108), (139, 477760), (160, 415054), (278, 238880), (320, 207527), (556, 119440), (695, 95552), (1112, 59720), (1390, 47776), (1493, 44480), (2224, 29860), (2780, 23888), (2986, 22240), (4448, 14930), (5560, 11944), (5972, 11120), (7465, 8896)]