20811830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160091}}^1$

素因数の和:160111

約数の個数: 16

約数和(自身を含む): 40343184

約数和(自身を除く): 19531354

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 160091, 320182, 800455, 1600910, 2081183, 4162366, 10405915, 20811830]

約数ペア:

[(1, 20811830), (2, 10405915), (5, 4162366), (10, 2081183), (13, 1600910), (26, 800455), (65, 320182), (130, 160091)]