128720220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{2145337}}^1$

素因数の和:2145349

約数の個数: 24

約数和(自身を含む): 360416784

約数和(自身を除く): 231696564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 2145337, 4290674, 6436011, 8581348, 10726685, 12872022, 21453370, 25744044, 32180055, 42906740, 64360110, 128720220]

約数ペア:

[(1, 128720220), (2, 64360110), (3, 42906740), (4, 32180055), (5, 25744044), (6, 21453370), (10, 12872022), (12, 10726685), (15, 8581348), (20, 6436011), (30, 4290674), (60, 2145337)]