12551920

素因数分解:

$2^4\times 5^1\times {\mathrm{156899}}^1$

素因数の和:156912

約数の個数: 20

約数和(自身を含む): 29183400

約数和(自身を除く): 16631480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156899, 313798, 627596, 784495, 1255192, 1568990, 2510384, 3137980, 6275960, 12551920]

約数ペア:

[(1, 12551920), (2, 6275960), (4, 3137980), (5, 2510384), (8, 1568990), (10, 1255192), (16, 784495), (20, 627596), (40, 313798), (80, 156899)]