128230525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{541}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 168020000

約数和(自身を除く): 39789475

約数列:

[1, 5, 19, 25, 95, 475, 499, 541, 2495, 2705, 9481, 10279, 12475, 13525, 47405, 51395, 237025, 256975, 269959, 1349795, 5129221, 6748975, 25646105, 128230525]

約数ペア:

[(1, 128230525), (5, 25646105), (19, 6748975), (25, 5129221), (95, 1349795), (475, 269959), (499, 256975), (541, 237025), (2495, 51395), (2705, 47405), (9481, 13525), (10279, 12475)]