20808897860

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{845203}}^1$

素因数の和:846443

約数の個数: 24

約数和(自身を含む): 43734235776

約数和(自身を除く): 22925337916

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 4924, 6155, 12310, 24620, 845203, 1690406, 3380812, 4226015, 8452030, 16904060, 1040444893, 2080889786, 4161779572, 5202224465, 10404448930, 20808897860]

約数ペア:

[(1, 20808897860), (2, 10404448930), (4, 5202224465), (5, 4161779572), (10, 2080889786), (20, 1040444893), (1231, 16904060), (2462, 8452030), (4924, 4226015), (6155, 3380812), (12310, 1690406), (24620, 845203)]