161769515

素因数分解:

$5^1\times {\mathrm{19}}^3\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 32

約数和(自身を含む): 211118400

約数和(自身を除く): 49348885

約数列:

[1, 5, 19, 53, 89, 95, 265, 361, 445, 1007, 1691, 1805, 4717, 5035, 6859, 8455, 19133, 23585, 32129, 34295, 89623, 95665, 160645, 363527, 448115, 610451, 1702837, 1817635, 3052255, 8514185, 32353903, 161769515]

約数ペア:

[(1, 161769515), (5, 32353903), (19, 8514185), (53, 3052255), (89, 1817635), (95, 1702837), (265, 610451), (361, 448115), (445, 363527), (1007, 160645), (1691, 95665), (1805, 89623), (4717, 34295), (5035, 32129), (6859, 23585), (8455, 19133)]