20160622

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:963

約数の個数: 16

約数和(自身を含む): 30904272

約数和(自身を除く): 10743650

約数列:

[1, 2, 61, 122, 257, 514, 643, 1286, 15677, 31354, 39223, 78446, 165251, 330502, 10080311, 20160622]

約数ペア:

[(1, 20160622), (2, 10080311), (61, 330502), (122, 165251), (257, 78446), (514, 39223), (643, 31354), (1286, 15677)]