643707086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{75217}}^1$

素因数の和:75619

約数の個数: 16

約数和(自身を含む): 1056060720

約数和(自身を除く): 412353634

約数列:

[1, 2, 11, 22, 389, 778, 4279, 8558, 75217, 150434, 827387, 1654774, 29259413, 58518826, 321853543, 643707086]

約数ペア:

[(1, 643707086), (2, 321853543), (11, 58518826), (22, 29259413), (389, 1654774), (778, 827387), (4279, 150434), (8558, 75217)]