38820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{647}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 108864

約数和(自身を除く): 70044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 647, 1294, 1941, 2588, 3235, 3882, 6470, 7764, 9705, 12940, 19410, 38820]

約数ペア:

[(1, 38820), (2, 19410), (3, 12940), (4, 9705), (5, 7764), (6, 6470), (10, 3882), (12, 3235), (15, 2588), (20, 1941), (30, 1294), (60, 647)]