640518239

素因数分解:

${\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{2161}}^1$

素因数の和:2378

約数の個数: 16

約数和(自身を含む): 672364704

約数和(自身を除く): 31846465

約数列:

[1, 43, 61, 113, 2161, 2623, 4859, 6893, 92923, 131821, 244193, 296399, 5668303, 10500299, 14895773, 640518239]

約数ペア:

[(1, 640518239), (43, 14895773), (61, 10500299), (113, 5668303), (2161, 296399), (2623, 244193), (4859, 131821), (6893, 92923)]