31965680

素因数分解:

$2^4\times 5^1\times {\mathrm{399571}}^1$

素因数の和:399584

約数の個数: 20

約数和(自身を含む): 74320392

約数和(自身を除く): 42354712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399571, 799142, 1598284, 1997855, 3196568, 3995710, 6393136, 7991420, 15982840, 31965680]

約数ペア:

[(1, 31965680), (2, 15982840), (4, 7991420), (5, 6393136), (8, 3995710), (10, 3196568), (16, 1997855), (20, 1598284), (40, 799142), (80, 399571)]