138868040

素因数分解:

$2^3\times 5^1\times {\mathrm{3471701}}^1$

素因数の和:3471712

約数の個数: 16

約数和(自身を含む): 312453180

約数和(自身を除く): 173585140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3471701, 6943402, 13886804, 17358505, 27773608, 34717010, 69434020, 138868040]

約数ペア:

[(1, 138868040), (2, 69434020), (4, 34717010), (5, 27773608), (8, 17358505), (10, 13886804), (20, 6943402), (40, 3471701)]