38644220

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1499}}^1$

素因数の和:2797

約数の個数: 24

約数和(自身を含む): 81270000

約数和(自身を除く): 42625780

約数列:

[1, 2, 4, 5, 10, 20, 1289, 1499, 2578, 2998, 5156, 5996, 6445, 7495, 12890, 14990, 25780, 29980, 1932211, 3864422, 7728844, 9661055, 19322110, 38644220]

約数ペア:

[(1, 38644220), (2, 19322110), (4, 9661055), (5, 7728844), (10, 3864422), (20, 1932211), (1289, 29980), (1499, 25780), (2578, 14990), (2998, 12890), (5156, 7495), (5996, 6445)]