170820868

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{118297}}^1$

素因数の和:118339

約数の個数: 18

約数和(自身を含む): 315500766

約数和(自身を除く): 144679898

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 118297, 236594, 473188, 2247643, 4495286, 8990572, 42705217, 85410434, 170820868]

約数ペア:

[(1, 170820868), (2, 85410434), (4, 42705217), (19, 8990572), (38, 4495286), (76, 2247643), (361, 473188), (722, 236594), (1444, 118297)]