640703188

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{10399}}^1$

素因数の和:10687

約数の個数: 24

約数和(自身を含む): 1142086400

約数和(自身を除く): 501383212

約数列:

[1, 2, 4, 73, 146, 211, 292, 422, 844, 10399, 15403, 20798, 30806, 41596, 61612, 759127, 1518254, 2194189, 3036508, 4388378, 8776756, 160175797, 320351594, 640703188]

約数ペア:

[(1, 640703188), (2, 320351594), (4, 160175797), (73, 8776756), (146, 4388378), (211, 3036508), (292, 2194189), (422, 1518254), (844, 759127), (10399, 61612), (15403, 41596), (20798, 30806)]