256851378

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{679501}}^1$

素因数の和:679519

約数の個数: 32

約数和(自身を含む): 652321920

約数和(自身を除く): 395470542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 679501, 1359002, 2038503, 4077006, 4756507, 6115509, 9513014, 12231018, 14269521, 18346527, 28539042, 36693054, 42808563, 85617126, 128425689, 256851378]

約数ペア:

[(1, 256851378), (2, 128425689), (3, 85617126), (6, 42808563), (7, 36693054), (9, 28539042), (14, 18346527), (18, 14269521), (21, 12231018), (27, 9513014), (42, 6115509), (54, 4756507), (63, 4077006), (126, 2038503), (189, 1359002), (378, 679501)]