81994315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{74203}}^1$

素因数の和:74238

約数の個数: 16

約数和(自身を含む): 112196448

約数和(自身を除く): 30202133

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 74203, 371015, 964639, 1261451, 4823195, 6307255, 16398863, 81994315]

約数ペア:

[(1, 81994315), (5, 16398863), (13, 6307255), (17, 4823195), (65, 1261451), (85, 964639), (221, 371015), (1105, 74203)]