81020585

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{947}}^1$

素因数の和:1264

約数の個数: 16

約数和(自身を含む): 99107712

約数和(自身を除く): 18087127

約数列:

[1, 5, 71, 241, 355, 947, 1205, 4735, 17111, 67237, 85555, 228227, 336185, 1141135, 16204117, 81020585]

約数ペア:

[(1, 81020585), (5, 16204117), (71, 1141135), (241, 336185), (355, 228227), (947, 85555), (1205, 67237), (4735, 17111)]