2640566020

素因数分解:

$2^2\times 5^1\times {\mathrm{132028301}}^1$

素因数の和:132028310

約数の個数: 12

約数和(自身を含む): 5545188684

約数和(自身を除く): 2904622664

約数列:

[1, 2, 4, 5, 10, 20, 132028301, 264056602, 528113204, 660141505, 1320283010, 2640566020]

約数ペア:

[(1, 2640566020), (2, 1320283010), (4, 660141505), (5, 528113204), (10, 264056602), (20, 132028301)]