64131128

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{19991}}^1$

素因数の和:20398

約数の個数: 16

約数和(自身を含む): 120551760

約数和(自身を除く): 56420632

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 19991, 39982, 79964, 159928, 8016391, 16032782, 32065564, 64131128]

約数ペア:

[(1, 64131128), (2, 32065564), (4, 16032782), (8, 8016391), (401, 159928), (802, 79964), (1604, 39982), (3208, 19991)]