220173790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{278701}}^1$

素因数の和:278787

約数の個数: 16

約数和(自身を含む): 401330880

約数和(自身を除く): 181157090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 278701, 557402, 1393505, 2787010, 22017379, 44034758, 110086895, 220173790]

約数ペア:

[(1, 220173790), (2, 110086895), (5, 44034758), (10, 22017379), (79, 2787010), (158, 1393505), (395, 557402), (790, 278701)]