1395920

素因数分解:

$2^4\times 5^1\times {\mathrm{17449}}^1$

素因数の和:17462

約数の個数: 20

約数和(自身を含む): 3245700

約数和(自身を除く): 1849780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17449, 34898, 69796, 87245, 139592, 174490, 279184, 348980, 697960, 1395920]

約数ペア:

[(1, 1395920), (2, 697960), (4, 348980), (5, 279184), (8, 174490), (10, 139592), (16, 87245), (20, 69796), (40, 34898), (80, 17449)]