390404

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 795648

約数和(自身を除く): 405244

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 191, 292, 382, 511, 764, 1022, 1337, 2044, 2674, 5348, 13943, 27886, 55772, 97601, 195202, 390404]

約数ペア:

[(1, 390404), (2, 195202), (4, 97601), (7, 55772), (14, 27886), (28, 13943), (73, 5348), (146, 2674), (191, 2044), (292, 1337), (382, 1022), (511, 764)]