40001474

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{653}}^1$

素因数の和:1045

約数の個数: 16

約数和(自身を含む): 60861240

約数和(自身を除く): 20859766

約数列:

[1, 2, 109, 218, 281, 562, 653, 1306, 30629, 61258, 71177, 142354, 183493, 366986, 20000737, 40001474]

約数ペア:

[(1, 40001474), (2, 20000737), (109, 366986), (218, 183493), (281, 142354), (562, 71177), (653, 61258), (1306, 30629)]