27981730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{399739}}^1$

素因数の和:399753

約数の個数: 16

約数和(自身を含む): 57562560

約数和(自身を除く): 29580830

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 399739, 799478, 1998695, 2798173, 3997390, 5596346, 13990865, 27981730]

約数ペア:

[(1, 27981730), (2, 13990865), (5, 5596346), (7, 3997390), (10, 2798173), (14, 1998695), (35, 799478), (70, 399739)]