20864120

素因数分解:

$2^3\times 5^1\times {\mathrm{521603}}^1$

素因数の和:521614

約数の個数: 16

約数和(自身を含む): 46944360

約数和(自身を除く): 26080240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521603, 1043206, 2086412, 2608015, 4172824, 5216030, 10432060, 20864120]

約数ペア:

[(1, 20864120), (2, 10432060), (4, 5216030), (5, 4172824), (8, 2608015), (10, 2086412), (20, 1043206), (40, 521603)]