639914834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{793939}}^1$

素因数の和:793985

約数の個数: 16

約数和(自身を含む): 1067055360

約数和(自身を除く): 427140526

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 793939, 1587878, 10321207, 20642414, 24612109, 49224218, 319957417, 639914834]

約数ペア:

[(1, 639914834), (2, 319957417), (13, 49224218), (26, 24612109), (31, 20642414), (62, 10321207), (403, 1587878), (806, 793939)]