20935780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10163}}^1$

素因数の和:10275

約数の個数: 24

約数和(自身を含む): 44396352

約数和(自身を除く): 23460572

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10163, 20326, 40652, 50815, 101630, 203260, 1046789, 2093578, 4187156, 5233945, 10467890, 20935780]

約数ペア:

[(1, 20935780), (2, 10467890), (4, 5233945), (5, 4187156), (10, 2093578), (20, 1046789), (103, 203260), (206, 101630), (412, 50815), (515, 40652), (1030, 20326), (2060, 10163)]