81640065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{418667}}^1$

素因数の和:418688

約数の個数: 16

約数和(自身を含む): 140672448

約数和(自身を除く): 59032383

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 418667, 1256001, 2093335, 5442671, 6280005, 16328013, 27213355, 81640065]

約数ペア:

[(1, 81640065), (3, 27213355), (5, 16328013), (13, 6280005), (15, 5442671), (39, 2093335), (65, 1256001), (195, 418667)]