31977745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{401}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 39508560

約数和(自身を除く): 7530815

約数列:

[1, 5, 41, 205, 389, 401, 1945, 2005, 15949, 16441, 79745, 82205, 155989, 779945, 6395549, 31977745]

約数ペア:

[(1, 31977745), (5, 6395549), (41, 779945), (205, 155989), (389, 82205), (401, 79745), (1945, 16441), (2005, 15949)]