638687056

素因数分解:

$2^4\times 7^1\times {\mathrm{5702563}}^1$

素因数の和:5702578

約数の個数: 20

約数和(自身を含む): 1414235872

約数和(自身を除く): 775548816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5702563, 11405126, 22810252, 39917941, 45620504, 79835882, 91241008, 159671764, 319343528, 638687056]

約数ペア:

[(1, 638687056), (2, 319343528), (4, 159671764), (7, 91241008), (8, 79835882), (14, 45620504), (16, 39917941), (28, 22810252), (56, 11405126), (112, 5702563)]