64431952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{309769}}^1$

素因数の和:309790

約数の個数: 20

約数和(自身を含む): 134440180

約数和(自身を除く): 70008228

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 309769, 619538, 1239076, 2478152, 4026997, 4956304, 8053994, 16107988, 32215976, 64431952]

約数ペア:

[(1, 64431952), (2, 32215976), (4, 16107988), (8, 8053994), (13, 4956304), (16, 4026997), (26, 2478152), (52, 1239076), (104, 619538), (208, 309769)]