81408572

素因数分解:

$2^2\times 7^1\times {\mathrm{1627}}^1\times {\mathrm{1787}}^1$

素因数の和:3425

約数の個数: 24

約数和(自身を含む): 163008384

約数和(自身を除く): 81599812

約数列:

[1, 2, 4, 7, 14, 28, 1627, 1787, 3254, 3574, 6508, 7148, 11389, 12509, 22778, 25018, 45556, 50036, 2907449, 5814898, 11629796, 20352143, 40704286, 81408572]

約数ペア:

[(1, 81408572), (2, 40704286), (4, 20352143), (7, 11629796), (14, 5814898), (28, 2907449), (1627, 50036), (1787, 45556), (3254, 25018), (3574, 22778), (6508, 12509), (7148, 11389)]