389898260

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{189271}}^1$

素因数の和:189383

約数の個数: 24

約数和(自身を含む): 826740096

約数和(自身を除く): 436841836

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 189271, 378542, 757084, 946355, 1892710, 3785420, 19494913, 38989826, 77979652, 97474565, 194949130, 389898260]

約数ペア:

[(1, 389898260), (2, 194949130), (4, 97474565), (5, 77979652), (10, 38989826), (20, 19494913), (103, 3785420), (206, 1892710), (412, 946355), (515, 757084), (1030, 378542), (2060, 189271)]