80016680

素因数分解:

$2^3\times 5^1\times {\mathrm{2000417}}^1$

素因数の和:2000428

約数の個数: 16

約数和(自身を含む): 180037620

約数和(自身を除く): 100020940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2000417, 4000834, 8001668, 10002085, 16003336, 20004170, 40008340, 80016680]

約数ペア:

[(1, 80016680), (2, 40008340), (4, 20004170), (5, 16003336), (8, 10002085), (10, 8001668), (20, 4000834), (40, 2000417)]