638861584

素因数分解:

$2^4\times {\mathrm{839}}^1\times {\mathrm{47591}}^1$

素因数の和:48438

約数の個数: 20

約数和(自身を含む): 1239295680

約数和(自身を除く): 600434096

約数列:

[1, 2, 4, 8, 16, 839, 1678, 3356, 6712, 13424, 47591, 95182, 190364, 380728, 761456, 39928849, 79857698, 159715396, 319430792, 638861584]

約数ペア:

[(1, 638861584), (2, 319430792), (4, 159715396), (8, 79857698), (16, 39928849), (839, 761456), (1678, 380728), (3356, 190364), (6712, 95182), (13424, 47591)]