2019201820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5313689}}^1$

素因数の和:5313717

約数の個数: 24

約数和(自身を含む): 4463499600

約数和(自身を除く): 2444297780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5313689, 10627378, 21254756, 26568445, 53136890, 100960091, 106273780, 201920182, 403840364, 504800455, 1009600910, 2019201820]

約数ペア:

[(1, 2019201820), (2, 1009600910), (4, 504800455), (5, 403840364), (10, 201920182), (19, 106273780), (20, 100960091), (38, 53136890), (76, 26568445), (95, 21254756), (190, 10627378), (380, 5313689)]