28361905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{39667}}^1$

素因数の和:39696

約数の個数: 16

約数和(自身を含む): 39985344

約数和(自身を除く): 11623439

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 39667, 198335, 436337, 515671, 2181685, 2578355, 5672381, 28361905]

約数ペア:

[(1, 28361905), (5, 5672381), (11, 2578355), (13, 2181685), (55, 515671), (65, 436337), (143, 198335), (715, 39667)]