320411180

素因数分解:

$2^2\times 5^1\times {\mathrm{16020559}}^1$

素因数の和:16020568

約数の個数: 12

約数和(自身を含む): 672863520

約数和(自身を除く): 352452340

約数列:

[1, 2, 4, 5, 10, 20, 16020559, 32041118, 64082236, 80102795, 160205590, 320411180]

約数ペア:

[(1, 320411180), (2, 160205590), (4, 80102795), (5, 64082236), (10, 32041118), (20, 16020559)]