1640700376

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{412651}}^1$

素因数の和:412735

約数の個数: 32

約数和(自身を含む): 3565313280

約数和(自身を除く): 1924612904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 412651, 825302, 1650604, 2888557, 3301208, 5777114, 11554228, 23108456, 29298221, 58596442, 117192884, 205087547, 234385768, 410175094, 820350188, 1640700376]

約数ペア:

[(1, 1640700376), (2, 820350188), (4, 410175094), (7, 234385768), (8, 205087547), (14, 117192884), (28, 58596442), (56, 29298221), (71, 23108456), (142, 11554228), (284, 5777114), (497, 3301208), (568, 2888557), (994, 1650604), (1988, 825302), (3976, 412651)]