20655142790

素因数分解:

$2^1\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1563599}}^1$

素因数の和:1564927

約数の個数: 16

約数和(自身を含む): 37207425600

約数和(自身を除く): 16552282810

約数列:

[1, 2, 5, 10, 1321, 2642, 6605, 13210, 1563599, 3127198, 7817995, 15635990, 2065514279, 4131028558, 10327571395, 20655142790]

約数ペア:

[(1, 20655142790), (2, 10327571395), (5, 4131028558), (10, 2065514279), (1321, 15635990), (2642, 7817995), (6605, 3127198), (13210, 1563599)]