128940412

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{4129}}^1$

素因数の和:4381

約数の個数: 24

約数和(自身を含む): 232898960

約数和(自身を除く): 103958548

約数列:

[1, 2, 4, 37, 74, 148, 211, 422, 844, 4129, 7807, 8258, 15614, 16516, 31228, 152773, 305546, 611092, 871219, 1742438, 3484876, 32235103, 64470206, 128940412]

約数ペア:

[(1, 128940412), (2, 64470206), (4, 32235103), (37, 3484876), (74, 1742438), (148, 871219), (211, 611092), (422, 305546), (844, 152773), (4129, 31228), (7807, 16516), (8258, 15614)]