81717805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{17707}}^1$

素因数の和:17796

約数の個数: 16

約数和(自身を含む): 107097984

約数和(自身を除く): 25380179

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 17707, 88535, 230191, 1150955, 1257197, 6285985, 16343561, 81717805]

約数ペア:

[(1, 81717805), (5, 16343561), (13, 6285985), (65, 1257197), (71, 1150955), (355, 230191), (923, 88535), (4615, 17707)]