20121479080

素因数分解:

$2^3\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{478627}}^1$

素因数の和:479689

約数の個数: 32

約数和(自身を含む): 45316499040

約数和(自身を除く): 25195019960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1051, 2102, 4204, 5255, 8408, 10510, 21020, 42040, 478627, 957254, 1914508, 2393135, 3829016, 4786270, 9572540, 19145080, 503036977, 1006073954, 2012147908, 2515184885, 4024295816, 5030369770, 10060739540, 20121479080]

約数ペア:

[(1, 20121479080), (2, 10060739540), (4, 5030369770), (5, 4024295816), (8, 2515184885), (10, 2012147908), (20, 1006073954), (40, 503036977), (1051, 19145080), (2102, 9572540), (4204, 4786270), (5255, 3829016), (8408, 2393135), (10510, 1914508), (21020, 957254), (42040, 478627)]