66537940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{475271}}^1$

素因数の和:475287

約数の個数: 24

約数和(自身を含む): 159691392

約数和(自身を除く): 93153452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 475271, 950542, 1901084, 2376355, 3326897, 4752710, 6653794, 9505420, 13307588, 16634485, 33268970, 66537940]

約数ペア:

[(1, 66537940), (2, 33268970), (4, 16634485), (5, 13307588), (7, 9505420), (10, 6653794), (14, 4752710), (20, 3326897), (28, 2376355), (35, 1901084), (70, 950542), (140, 475271)]