20940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 58800

約数和(自身を除く): 37860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 1047, 1396, 1745, 2094, 3490, 4188, 5235, 6980, 10470, 20940]

約数ペア:

[(1, 20940), (2, 10470), (3, 6980), (4, 5235), (5, 4188), (6, 3490), (10, 2094), (12, 1745), (15, 1396), (20, 1047), (30, 698), (60, 349)]