257175078

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{639739}}^1$

素因数の和:639811

約数の個数: 16

約数和(自身を含む): 522027840

約数和(自身を除く): 264852762

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 639739, 1279478, 1919217, 3838434, 42862513, 85725026, 128587539, 257175078]

約数ペア:

[(1, 257175078), (2, 128587539), (3, 85725026), (6, 42862513), (67, 3838434), (134, 1919217), (201, 1279478), (402, 639739)]