51323920

素因数分解:

$2^4\times 5^1\times {\mathrm{641549}}^1$

素因数の和:641562

約数の個数: 20

約数和(自身を含む): 119328300

約数和(自身を除く): 68004380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641549, 1283098, 2566196, 3207745, 5132392, 6415490, 10264784, 12830980, 25661960, 51323920]

約数ペア:

[(1, 51323920), (2, 25661960), (4, 12830980), (5, 10264784), (8, 6415490), (10, 5132392), (16, 3207745), (20, 2566196), (40, 1283098), (80, 641549)]