257054478

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{639439}}^1$

素因数の和:639511

約数の個数: 16

約数和(自身を含む): 521783040

約数和(自身を除く): 264728562

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 639439, 1278878, 1918317, 3836634, 42842413, 85684826, 128527239, 257054478]

約数ペア:

[(1, 257054478), (2, 128527239), (3, 85684826), (6, 42842413), (67, 3836634), (134, 1918317), (201, 1278878), (402, 639439)]