20321270

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16001}}^1$

素因数の和:16135

約数の個数: 16

約数和(自身を含む): 36868608

約数和(自身を除く): 16547338

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 16001, 32002, 80005, 160010, 2032127, 4064254, 10160635, 20321270]

約数ペア:

[(1, 20321270), (2, 10160635), (5, 4064254), (10, 2032127), (127, 160010), (254, 80005), (635, 32002), (1270, 16001)]