81205558

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{65173}}^1$

素因数の和:65271

約数の個数: 16

約数和(自身を含む): 140775840

約数和(自身を除く): 59570282

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 65173, 130346, 456211, 912422, 5800397, 11600794, 40602779, 81205558]

約数ペア:

[(1, 81205558), (2, 40602779), (7, 11600794), (14, 5800397), (89, 912422), (178, 456211), (623, 130346), (1246, 65173)]