278328946

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{280009}}^1$

素因数の和:280089

約数の個数: 16

約数和(自身を含む): 483857280

約数和(自身を除く): 205528334

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 280009, 560018, 1960063, 3920126, 19880639, 39761278, 139164473, 278328946]

約数ペア:

[(1, 278328946), (2, 139164473), (7, 39761278), (14, 19880639), (71, 3920126), (142, 1960063), (497, 560018), (994, 280009)]