201390220

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{25111}}^1$

素因数の和:25521

約数の個数: 24

約数和(自身を含む): 423991008

約数和(自身を除く): 222600788

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 25111, 50222, 100444, 125555, 251110, 502220, 10069511, 20139022, 40278044, 50347555, 100695110, 201390220]

約数ペア:

[(1, 201390220), (2, 100695110), (4, 50347555), (5, 40278044), (10, 20139022), (20, 10069511), (401, 502220), (802, 251110), (1604, 125555), (2005, 100444), (4010, 50222), (8020, 25111)]