20181279964

素因数分解:

$2^2\times {\mathrm{1979}}^1\times {\mathrm{2549429}}^1$

素因数の和:2551412

約数の個数: 12

約数和(自身を含む): 35335099800

約数和(自身を除く): 15153819836

約数列:

[1, 2, 4, 1979, 3958, 7916, 2549429, 5098858, 10197716, 5045319991, 10090639982, 20181279964]

約数ペア:

[(1, 20181279964), (2, 10090639982), (4, 5045319991), (1979, 10197716), (3958, 5098858), (7916, 2549429)]