20618940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{343649}}^1$

素因数の和:343661

約数の個数: 24

約数和(自身を含む): 57733200

約数和(自身を除く): 37114260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 343649, 687298, 1030947, 1374596, 1718245, 2061894, 3436490, 4123788, 5154735, 6872980, 10309470, 20618940]

約数ペア:

[(1, 20618940), (2, 10309470), (3, 6872980), (4, 5154735), (5, 4123788), (6, 3436490), (10, 2061894), (12, 1718245), (15, 1374596), (20, 1030947), (30, 687298), (60, 343649)]