12901960

素因数分解:

$2^3\times 5^1\times {\mathrm{322549}}^1$

素因数の和:322560

約数の個数: 16

約数和(自身を含む): 29029500

約数和(自身を除く): 16127540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 322549, 645098, 1290196, 1612745, 2580392, 3225490, 6450980, 12901960]

約数ペア:

[(1, 12901960), (2, 6450980), (4, 3225490), (5, 2580392), (8, 1612745), (10, 1290196), (20, 645098), (40, 322549)]