20291288

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{28499}}^1$

素因数の和:28594

約数の個数: 16

約数和(自身を含む): 38475000

約数和(自身を除く): 18183712

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 28499, 56998, 113996, 227992, 2536411, 5072822, 10145644, 20291288]

約数ペア:

[(1, 20291288), (2, 10145644), (4, 5072822), (8, 2536411), (89, 227992), (178, 113996), (356, 56998), (712, 28499)]