81228218

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:1109

約数の個数: 16

約数和(自身を含む): 123000000

約数和(自身を除く): 41771782

約数列:

[1, 2, 199, 398, 409, 499, 818, 998, 81391, 99301, 162782, 198602, 204091, 408182, 40614109, 81228218]

約数ペア:

[(1, 81228218), (2, 40614109), (199, 408182), (398, 204091), (409, 198602), (499, 162782), (818, 99301), (998, 81391)]