20185456

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12491}}^1$

素因数の和:12600

約数の個数: 20

約数和(自身を含む): 39499704

約数和(自身を除く): 19314248

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12491, 24982, 49964, 99928, 199856, 1261591, 2523182, 5046364, 10092728, 20185456]

約数ペア:

[(1, 20185456), (2, 10092728), (4, 5046364), (8, 2523182), (16, 1261591), (101, 199856), (202, 99928), (404, 49964), (808, 24982), (1616, 12491)]