20178342020

素因数分解:

$2^2\times 5^1\times {\mathrm{2243}}^1\times {\mathrm{449807}}^1$

素因数の和:452059

約数の個数: 24

約数和(自身を含む): 42393504384

約数和(自身を除く): 22215162364

約数列:

[1, 2, 4, 5, 10, 20, 2243, 4486, 8972, 11215, 22430, 44860, 449807, 899614, 1799228, 2249035, 4498070, 8996140, 1008917101, 2017834202, 4035668404, 5044585505, 10089171010, 20178342020]

約数ペア:

[(1, 20178342020), (2, 10089171010), (4, 5044585505), (5, 4035668404), (10, 2017834202), (20, 1008917101), (2243, 8996140), (4486, 4498070), (8972, 2249035), (11215, 1799228), (22430, 899614), (44860, 449807)]