40399516

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{72661}}^1$

素因数の和:72804

約数の個数: 12

約数和(自身を含む): 71208760

約数和(自身を除く): 30809244

約数列:

[1, 2, 4, 139, 278, 556, 72661, 145322, 290644, 10099879, 20199758, 40399516]

約数ペア:

[(1, 40399516), (2, 20199758), (4, 10099879), (139, 290644), (278, 145322), (556, 72661)]