20008790

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3931}}^1$

素因数の和:4447

約数の個数: 16

約数和(自身を含む): 36095760

約数和(自身を除く): 16086970

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 3931, 5090, 7862, 19655, 39310, 2000879, 4001758, 10004395, 20008790]

約数ペア:

[(1, 20008790), (2, 10004395), (5, 4001758), (10, 2000879), (509, 39310), (1018, 19655), (2545, 7862), (3931, 5090)]