13688020

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1559}}^1$

素因数の和:2007

約数の個数: 24

約数和(自身を含む): 28828800

約数和(自身を除く): 15140780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1559, 1756, 2195, 3118, 4390, 6236, 7795, 8780, 15590, 31180, 684401, 1368802, 2737604, 3422005, 6844010, 13688020]

約数ペア:

[(1, 13688020), (2, 6844010), (4, 3422005), (5, 2737604), (10, 1368802), (20, 684401), (439, 31180), (878, 15590), (1559, 8780), (1756, 7795), (2195, 6236), (3118, 4390)]