20440730

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28001}}^1$

素因数の和:28081

約数の個数: 16

約数和(自身を含む): 37298664

約数和(自身を除く): 16857934

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28001, 56002, 140005, 280010, 2044073, 4088146, 10220365, 20440730]

約数ペア:

[(1, 20440730), (2, 10220365), (5, 4088146), (10, 2044073), (73, 280010), (146, 140005), (365, 56002), (730, 28001)]