28248415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{6121}}^1$

素因数の和:6210

約数の個数: 16

約数和(自身を含む): 37025856

約数和(自身を除く): 8777441

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 6121, 30605, 79573, 397865, 434591, 2172955, 5649683, 28248415]

約数ペア:

[(1, 28248415), (5, 5649683), (13, 2172955), (65, 434591), (71, 397865), (355, 79573), (923, 30605), (4615, 6121)]