71640464

素因数分解:

$2^4\times 7^1\times {\mathrm{639647}}^1$

素因数の和:639662

約数の個数: 20

約数和(自身を含む): 158632704

約数和(自身を除く): 86992240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 639647, 1279294, 2558588, 4477529, 5117176, 8955058, 10234352, 17910116, 35820232, 71640464]

約数ペア:

[(1, 71640464), (2, 35820232), (4, 17910116), (7, 10234352), (8, 8955058), (14, 5117176), (16, 4477529), (28, 2558588), (56, 1279294), (112, 639647)]