20408695

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:762

約数の個数: 16

約数和(自身を含む): 25420032

約数和(自身を除く): 5011337

約数列:

[1, 5, 31, 155, 353, 373, 1765, 1865, 10943, 11563, 54715, 57815, 131669, 658345, 4081739, 20408695]

約数ペア:

[(1, 20408695), (5, 4081739), (31, 658345), (155, 131669), (353, 57815), (373, 54715), (1765, 11563), (1865, 10943)]