19824820

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1289}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 41718600

約数和(自身を除く): 21893780

約数列:

[1, 2, 4, 5, 10, 20, 769, 1289, 1538, 2578, 3076, 3845, 5156, 6445, 7690, 12890, 15380, 25780, 991241, 1982482, 3964964, 4956205, 9912410, 19824820]

約数ペア:

[(1, 19824820), (2, 9912410), (4, 4956205), (5, 3964964), (10, 1982482), (20, 991241), (769, 25780), (1289, 15380), (1538, 12890), (2578, 7690), (3076, 6445), (3845, 5156)]