20907770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160829}}^1$

素因数の和:160849

約数の個数: 16

約数和(自身を含む): 40529160

約数和(自身を除く): 19621390

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 160829, 321658, 804145, 1608290, 2090777, 4181554, 10453885, 20907770]

約数ペア:

[(1, 20907770), (2, 10453885), (5, 4181554), (10, 2090777), (13, 1608290), (26, 804145), (65, 321658), (130, 160829)]