20097820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52889}}^1$

素因数の和:52917

約数の個数: 24

約数和(自身を含む): 44427600

約数和(自身を除く): 24329780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52889, 105778, 211556, 264445, 528890, 1004891, 1057780, 2009782, 4019564, 5024455, 10048910, 20097820]

約数ペア:

[(1, 20097820), (2, 10048910), (4, 5024455), (5, 4019564), (10, 2009782), (19, 1057780), (20, 1004891), (38, 528890), (76, 264445), (95, 211556), (190, 105778), (380, 52889)]