12799981820

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{791099}}^1$

素因数の和:791917

約数の個数: 24

約数和(自身を含む): 26913222000

約数和(自身を除く): 14113240180

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 16180, 791099, 1582198, 3164396, 3955495, 7910990, 15821980, 639999091, 1279998182, 2559996364, 3199995455, 6399990910, 12799981820]

約数ペア:

[(1, 12799981820), (2, 6399990910), (4, 3199995455), (5, 2559996364), (10, 1279998182), (20, 639999091), (809, 15821980), (1618, 7910990), (3236, 3955495), (4045, 3164396), (8090, 1582198), (16180, 791099)]