399418768

素因数分解:

$2^4\times 7^1\times {\mathrm{3566239}}^1$

素因数の和:3566254

約数の個数: 20

約数和(自身を含む): 884427520

約数和(自身を除く): 485008752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 3566239, 7132478, 14264956, 24963673, 28529912, 49927346, 57059824, 99854692, 199709384, 399418768]

約数ペア:

[(1, 399418768), (2, 199709384), (4, 99854692), (7, 57059824), (8, 49927346), (14, 28529912), (16, 24963673), (28, 14264956), (56, 7132478), (112, 3566239)]