28213990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{403057}}^1$

素因数の和:403071

約数の個数: 16

約数和(自身を含む): 58040352

約数和(自身を除く): 29826362

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 403057, 806114, 2015285, 2821399, 4030570, 5642798, 14106995, 28213990]

約数ペア:

[(1, 28213990), (2, 14106995), (5, 5642798), (7, 4030570), (10, 2821399), (14, 2015285), (35, 806114), (70, 403057)]