33680

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1$

素因数の和:434

約数の個数: 20

約数和(自身を含む): 78492

約数和(自身を除く): 44812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 16840, 33680]

約数ペア:

[(1, 33680), (2, 16840), (4, 8420), (5, 6736), (8, 4210), (10, 3368), (16, 2105), (20, 1684), (40, 842), (80, 421)]