16523140

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2081}}^1$

素因数の和:2487

約数の個数: 24

約数和(自身を含む): 34802712

約数和(自身を除く): 18279572

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2081, 3970, 4162, 7940, 8324, 10405, 20810, 41620, 826157, 1652314, 3304628, 4130785, 8261570, 16523140]

約数ペア:

[(1, 16523140), (2, 8261570), (4, 4130785), (5, 3304628), (10, 1652314), (20, 826157), (397, 41620), (794, 20810), (1588, 10405), (1985, 8324), (2081, 7940), (3970, 4162)]