199023620

素因数分解:

$2^2\times 5^1\times {\mathrm{9951181}}^1$

素因数の和:9951190

約数の個数: 12

約数和(自身を含む): 417949644

約数和(自身を除く): 218926024

約数列:

[1, 2, 4, 5, 10, 20, 9951181, 19902362, 39804724, 49755905, 99511810, 199023620]

約数ペア:

[(1, 199023620), (2, 99511810), (4, 49755905), (5, 39804724), (10, 19902362), (20, 9951181)]