64480880

素因数分解:

$2^4\times 5^1\times {\mathrm{806011}}^1$

素因数の和:806024

約数の個数: 20

約数和(自身を含む): 149918232

約数和(自身を除く): 85437352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 806011, 1612022, 3224044, 4030055, 6448088, 8060110, 12896176, 16120220, 32240440, 64480880]

約数ペア:

[(1, 64480880), (2, 32240440), (4, 16120220), (5, 12896176), (8, 8060110), (10, 6448088), (16, 4030055), (20, 3224044), (40, 1612022), (80, 806011)]