399989912

素因数分解:

$2^3\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{6571}}^1$

素因数の和:7671

約数の個数: 32

約数和(自身を含む): 858040320

約数和(自身を除く): 458050408

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1087, 2174, 4348, 6571, 7609, 8696, 13142, 15218, 26284, 30436, 45997, 52568, 60872, 91994, 183988, 367976, 7142677, 14285354, 28570708, 49998739, 57141416, 99997478, 199994956, 399989912]

約数ペア:

[(1, 399989912), (2, 199994956), (4, 99997478), (7, 57141416), (8, 49998739), (14, 28570708), (28, 14285354), (56, 7142677), (1087, 367976), (2174, 183988), (4348, 91994), (6571, 60872), (7609, 52568), (8696, 45997), (13142, 30436), (15218, 26284)]