20280129410

素因数分解:

$2^1\times 5^1\times {\mathrm{6563}}^1\times {\mathrm{309007}}^1$

素因数の和:315577

約数の個数: 16

約数和(自身を含む): 36509913216

約数和(自身を除く): 16229783806

約数列:

[1, 2, 5, 10, 6563, 13126, 32815, 65630, 309007, 618014, 1545035, 3090070, 2028012941, 4056025882, 10140064705, 20280129410]

約数ペア:

[(1, 20280129410), (2, 10140064705), (5, 4056025882), (10, 2028012941), (6563, 3090070), (13126, 1545035), (32815, 618014), (65630, 309007)]