40880042

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{78919}}^1$

素因数の和:78965

約数の個数: 16

約数和(自身を含む): 71975040

約数和(自身を除く): 31094998

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 78919, 157838, 552433, 1104866, 2920003, 5840006, 20440021, 40880042]

約数ペア:

[(1, 40880042), (2, 20440021), (7, 5840006), (14, 2920003), (37, 1104866), (74, 552433), (259, 157838), (518, 78919)]