40987115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20341}}^1$

素因数の和:20390

約数の個数: 16

約数和(自身を含む): 54679296

約数和(自身を除く): 13692181

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 20341, 101705, 264433, 630571, 1322165, 3152855, 8197423, 40987115]

約数ペア:

[(1, 40987115), (5, 8197423), (13, 3152855), (31, 1322165), (65, 630571), (155, 264433), (403, 101705), (2015, 20341)]