11520940

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1451}}^1$

素因数の和:1857

約数の個数: 24

約数和(自身を含む): 24271632

約数和(自身を除く): 12750692

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1451, 1588, 1985, 2902, 3970, 5804, 7255, 7940, 14510, 29020, 576047, 1152094, 2304188, 2880235, 5760470, 11520940]

約数ペア:

[(1, 11520940), (2, 5760470), (4, 2880235), (5, 2304188), (10, 1152094), (20, 576047), (397, 29020), (794, 14510), (1451, 7940), (1588, 7255), (1985, 5804), (2902, 3970)]