388584820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1494557}}^1$

素因数の和:1494579

約数の個数: 24

約数和(自身を含む): 878800104

約数和(自身を除く): 490215284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1494557, 2989114, 5978228, 7472785, 14945570, 19429241, 29891140, 38858482, 77716964, 97146205, 194292410, 388584820]

約数ペア:

[(1, 388584820), (2, 194292410), (4, 97146205), (5, 77716964), (10, 38858482), (13, 29891140), (20, 19429241), (26, 14945570), (52, 7472785), (65, 5978228), (130, 2989114), (260, 1494557)]