42910540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10891}}^1$

素因数の和:11097

約数の個数: 24

約数和(自身を含む): 90577872

約数和(自身を除く): 47667332

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10891, 21782, 43564, 54455, 108910, 217820, 2145527, 4291054, 8582108, 10727635, 21455270, 42910540]

約数ペア:

[(1, 42910540), (2, 21455270), (4, 10727635), (5, 8582108), (10, 4291054), (20, 2145527), (197, 217820), (394, 108910), (788, 54455), (985, 43564), (1970, 21782), (3940, 10891)]