197982790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{278849}}^1$

素因数の和:278927

約数の個数: 16

約数和(自身を含む): 361389600

約数和(自身を除く): 163406810

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 278849, 557698, 1394245, 2788490, 19798279, 39596558, 98991395, 197982790]

約数ペア:

[(1, 197982790), (2, 98991395), (5, 39596558), (10, 19798279), (71, 2788490), (142, 1394245), (355, 557698), (710, 278849)]