168554290

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{42457}}^1$

素因数の和:42861

約数の個数: 16

約数和(自身を含む): 304169112

約数和(自身を除く): 135614822

約数列:

[1, 2, 5, 10, 397, 794, 1985, 3970, 42457, 84914, 212285, 424570, 16855429, 33710858, 84277145, 168554290]

約数ペア:

[(1, 168554290), (2, 84277145), (5, 33710858), (10, 16855429), (397, 424570), (794, 212285), (1985, 84914), (3970, 42457)]