257843670148

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{907900247}}^1$

素因数の和:907900322

約数の個数: 12

約数和(自身を含む): 457581724992

約数和(自身を除く): 199738054844

約数列:

[1, 2, 4, 71, 142, 284, 907900247, 1815800494, 3631600988, 64460917537, 128921835074, 257843670148]

約数ペア:

[(1, 257843670148), (2, 128921835074), (4, 64460917537), (71, 3631600988), (142, 1815800494), (284, 907900247)]