78812860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{562949}}^1$

素因数の和:562965

約数の個数: 24

約数和(自身を含む): 189151200

約数和(自身を除く): 110338340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 562949, 1125898, 2251796, 2814745, 3940643, 5629490, 7881286, 11258980, 15762572, 19703215, 39406430, 78812860]

約数ペア:

[(1, 78812860), (2, 39406430), (4, 19703215), (5, 15762572), (7, 11258980), (10, 7881286), (14, 5629490), (20, 3940643), (28, 2814745), (35, 2251796), (70, 1125898), (140, 562949)]