1280908838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{275939}}^1$

素因数の和:276163

約数の個数: 16

約数和(自身を含む): 2105974080

約数和(自身を除く): 825065242

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4642, 275939, 551878, 3035329, 6070658, 58223129, 116446258, 640454419, 1280908838]

約数ペア:

[(1, 1280908838), (2, 640454419), (11, 116446258), (22, 58223129), (211, 6070658), (422, 3035329), (2321, 551878), (4642, 275939)]