278320994

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{280001}}^1$

素因数の和:280081

約数の個数: 16

約数和(自身を含む): 483843456

約数和(自身を除く): 205522462

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 280001, 560002, 1960007, 3920014, 19880071, 39760142, 139160497, 278320994]

約数ペア:

[(1, 278320994), (2, 139160497), (7, 39760142), (14, 19880071), (71, 3920014), (142, 1960007), (497, 560002), (994, 280001)]