187221520

素因数分解:

$2^4\times 5^1\times {\mathrm{2340269}}^1$

素因数の和:2340282

約数の個数: 20

約数和(自身を含む): 435290220

約数和(自身を除く): 248068700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2340269, 4680538, 9361076, 11701345, 18722152, 23402690, 37444304, 46805380, 93610760, 187221520]

約数ペア:

[(1, 187221520), (2, 93610760), (4, 46805380), (5, 37444304), (8, 23402690), (10, 18722152), (16, 11701345), (20, 9361076), (40, 4680538), (80, 2340269)]