131421025

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 167176800

約数和(自身を除く): 35755775

約数列:

[1, 5, 25, 59, 139, 295, 641, 695, 1475, 3205, 3475, 8201, 16025, 37819, 41005, 89099, 189095, 205025, 445495, 945475, 2227475, 5256841, 26284205, 131421025]

約数ペア:

[(1, 131421025), (5, 26284205), (25, 5256841), (59, 2227475), (139, 945475), (295, 445495), (641, 205025), (695, 189095), (1475, 89099), (3205, 41005), (3475, 37819), (8201, 16025)]