638443756

素因数分解:

$2^2\times {\mathrm{229}}^1\times {\mathrm{696991}}^1$

素因数の和:697224

約数の個数: 12

約数和(自身を含む): 1122157120

約数和(自身を除く): 483713364

約数列:

[1, 2, 4, 229, 458, 916, 696991, 1393982, 2787964, 159610939, 319221878, 638443756]

約数ペア:

[(1, 638443756), (2, 319221878), (4, 159610939), (229, 2787964), (458, 1393982), (916, 696991)]