67221520

素因数分解:

$2^4\times 5^1\times {\mathrm{840269}}^1$

素因数の和:840282

約数の個数: 20

約数和(自身を含む): 156290220

約数和(自身を除く): 89068700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 840269, 1680538, 3361076, 4201345, 6722152, 8402690, 13444304, 16805380, 33610760, 67221520]

約数ペア:

[(1, 67221520), (2, 33610760), (4, 16805380), (5, 13444304), (8, 8402690), (10, 6722152), (16, 4201345), (20, 3361076), (40, 1680538), (80, 840269)]