80521905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{787}}^1$

素因数の和:1173

約数の個数: 32

約数和(自身を含む): 136166400

約数和(自身を除く): 55644495

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 359, 787, 1077, 1795, 2361, 3935, 5385, 6821, 11805, 14953, 20463, 34105, 44859, 74765, 102315, 224295, 282533, 847599, 1412665, 4237995, 5368127, 16104381, 26840635, 80521905]

約数ペア:

[(1, 80521905), (3, 26840635), (5, 16104381), (15, 5368127), (19, 4237995), (57, 1412665), (95, 847599), (285, 282533), (359, 224295), (787, 102315), (1077, 74765), (1795, 44859), (2361, 34105), (3935, 20463), (5385, 14953), (6821, 11805)]