81216910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{353117}}^1$

素因数の和:353147

約数の個数: 16

約数和(自身を含む): 152546976

約数和(自身を除く): 71330066

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 353117, 706234, 1765585, 3531170, 8121691, 16243382, 40608455, 81216910]

約数ペア:

[(1, 81216910), (2, 40608455), (5, 16243382), (10, 8121691), (23, 3531170), (46, 1765585), (115, 706234), (230, 353117)]