639809036

素因数分解:

$2^2\times {\mathrm{1123}}^1\times {\mathrm{142433}}^1$

素因数の和:143560

約数の個数: 12

約数和(自身を含む): 1120670712

約数和(自身を除く): 480861676

約数列:

[1, 2, 4, 1123, 2246, 4492, 142433, 284866, 569732, 159952259, 319904518, 639809036]

約数ペア:

[(1, 639809036), (2, 319904518), (4, 159952259), (1123, 569732), (2246, 284866), (4492, 142433)]