1388440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{337}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 3163680

約数和(自身を除く): 1775240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 337, 412, 515, 674, 824, 1030, 1348, 1685, 2060, 2696, 3370, 4120, 6740, 13480, 34711, 69422, 138844, 173555, 277688, 347110, 694220, 1388440]

約数ペア:

[(1, 1388440), (2, 694220), (4, 347110), (5, 277688), (8, 173555), (10, 138844), (20, 69422), (40, 34711), (103, 13480), (206, 6740), (337, 4120), (412, 3370), (515, 2696), (674, 2060), (824, 1685), (1030, 1348)]