81129424

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{15319}}^1$

素因数の和:15658

約数の個数: 20

約数和(自身を含む): 157673440

約数和(自身を除く): 76544016

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 5296, 15319, 30638, 61276, 122552, 245104, 5070589, 10141178, 20282356, 40564712, 81129424]

約数ペア:

[(1, 81129424), (2, 40564712), (4, 20282356), (8, 10141178), (16, 5070589), (331, 245104), (662, 122552), (1324, 61276), (2648, 30638), (5296, 15319)]