19398145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26812800

約数和(自身を除く): 7414655

約数列:

[1, 5, 13, 19, 65, 95, 113, 139, 247, 565, 695, 1235, 1469, 1807, 2147, 2641, 7345, 9035, 10735, 13205, 15707, 27911, 34333, 78535, 139555, 171665, 204191, 298433, 1020955, 1492165, 3879629, 19398145]

約数ペア:

[(1, 19398145), (5, 3879629), (13, 1492165), (19, 1020955), (65, 298433), (95, 204191), (113, 171665), (139, 139555), (247, 78535), (565, 34333), (695, 27911), (1235, 15707), (1469, 13205), (1807, 10735), (2147, 9035), (2641, 7345)]