81905135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43451}}^1$

素因数の和:43498

約数の個数: 16

約数和(自身を含む): 109499040

約数和(自身を除く): 27593905

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 43451, 217255, 564863, 1260079, 2824315, 6300395, 16381027, 81905135]

約数ペア:

[(1, 81905135), (5, 16381027), (13, 6300395), (29, 2824315), (65, 1260079), (145, 564863), (377, 217255), (1885, 43451)]