20152405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3407}}^1$

素因数の和:3445

約数の個数: 24

約数和(自身を含む): 29935872

約数和(自身を除く): 9783467

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3407, 5915, 17035, 23849, 44291, 119245, 221455, 310037, 575783, 1550185, 2878915, 4030481, 20152405]

約数ペア:

[(1, 20152405), (5, 4030481), (7, 2878915), (13, 1550185), (35, 575783), (65, 310037), (91, 221455), (169, 119245), (455, 44291), (845, 23849), (1183, 17035), (3407, 5915)]