42690185

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 55883520

約数和(自身を除く): 13193335

約数列:

[1, 5, 23, 43, 89, 97, 115, 215, 445, 485, 989, 2047, 2231, 3827, 4171, 4945, 8633, 10235, 11155, 19135, 20855, 43165, 88021, 95933, 198559, 371219, 440105, 479665, 992795, 1856095, 8538037, 42690185]

約数ペア:

[(1, 42690185), (5, 8538037), (23, 1856095), (43, 992795), (89, 479665), (97, 440105), (115, 371219), (215, 198559), (445, 95933), (485, 88021), (989, 43165), (2047, 20855), (2231, 19135), (3827, 11155), (4171, 10235), (4945, 8633)]