18900070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{270001}}^1$

素因数の和:270015

約数の個数: 16

約数和(自身を含む): 38880288

約数和(自身を除く): 19980218

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 270001, 540002, 1350005, 1890007, 2700010, 3780014, 9450035, 18900070]

約数ペア:

[(1, 18900070), (2, 9450035), (5, 3780014), (7, 2700010), (10, 1890007), (14, 1350005), (35, 540002), (70, 270001)]