217628210

素因数分解:

$2^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{25939}}^1$

素因数の和:26785

約数の個数: 16

約数和(自身を含む): 392212800

約数和(自身を除く): 174584590

約数列:

[1, 2, 5, 10, 839, 1678, 4195, 8390, 25939, 51878, 129695, 259390, 21762821, 43525642, 108814105, 217628210]

約数ペア:

[(1, 217628210), (2, 108814105), (5, 43525642), (10, 21762821), (839, 259390), (1678, 129695), (4195, 51878), (8390, 25939)]