20378940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{339649}}^1$

素因数の和:339661

約数の個数: 24

約数和(自身を含む): 57061200

約数和(自身を除く): 36682260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 339649, 679298, 1018947, 1358596, 1698245, 2037894, 3396490, 4075788, 5094735, 6792980, 10189470, 20378940]

約数ペア:

[(1, 20378940), (2, 10189470), (3, 6792980), (4, 5094735), (5, 4075788), (6, 3396490), (10, 2037894), (12, 1698245), (15, 1358596), (20, 1018947), (30, 679298), (60, 339649)]