87420220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{42437}}^1$

素因数の和:42549

約数の個数: 24

約数和(自身を含む): 185369184

約数和(自身を除く): 97948964

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 42437, 84874, 169748, 212185, 424370, 848740, 4371011, 8742022, 17484044, 21855055, 43710110, 87420220]

約数ペア:

[(1, 87420220), (2, 43710110), (4, 21855055), (5, 17484044), (10, 8742022), (20, 4371011), (103, 848740), (206, 424370), (412, 212185), (515, 169748), (1030, 84874), (2060, 42437)]