399883390

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{97771}}^1$

素因数の和:98187

約数の個数: 16

約数和(自身を含む): 721557360

約数和(自身を除く): 321673970

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 97771, 195542, 488855, 977710, 39988339, 79976678, 199941695, 399883390]

約数ペア:

[(1, 399883390), (2, 199941695), (5, 79976678), (10, 39988339), (409, 977710), (818, 488855), (2045, 195542), (4090, 97771)]