20605150

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{4001}}^1$

素因数の和:4116

約数の個数: 24

約数和(自身を含む): 38707344

約数和(自身を除く): 18102194

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 4001, 5150, 8002, 20005, 40010, 100025, 200050, 412103, 824206, 2060515, 4121030, 10302575, 20605150]

約数ペア:

[(1, 20605150), (2, 10302575), (5, 4121030), (10, 2060515), (25, 824206), (50, 412103), (103, 200050), (206, 100025), (515, 40010), (1030, 20005), (2575, 8002), (4001, 5150)]