171389990

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{39041}}^1$

素因数の和:39487

約数の個数: 16

約数和(自身を含む): 309212640

約数和(自身を除く): 137822650

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 39041, 78082, 195205, 390410, 17138999, 34277998, 85694995, 171389990]

約数ペア:

[(1, 171389990), (2, 85694995), (5, 34277998), (10, 17138999), (439, 390410), (878, 195205), (2195, 78082), (4390, 39041)]