19804570

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6451}}^1$

素因数の和:6765

約数の個数: 16

約数和(自身を含む): 35769888

約数和(自身を除く): 15965318

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 6451, 12902, 32255, 64510, 1980457, 3960914, 9902285, 19804570]

約数ペア:

[(1, 19804570), (2, 9902285), (5, 3960914), (10, 1980457), (307, 64510), (614, 32255), (1535, 12902), (3070, 6451)]