5406980

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 11399640

約数和(自身を除く): 5992660

約数列:

[1, 2, 4, 5, 10, 20, 409, 661, 818, 1322, 1636, 2045, 2644, 3305, 4090, 6610, 8180, 13220, 270349, 540698, 1081396, 1351745, 2703490, 5406980]

約数ペア:

[(1, 5406980), (2, 2703490), (4, 1351745), (5, 1081396), (10, 540698), (20, 270349), (409, 13220), (661, 8180), (818, 6610), (1322, 4090), (1636, 3305), (2045, 2644)]