81570818

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 142940160

約数和(自身を除く): 61369342

約数列:

[1, 2, 7, 14, 79, 131, 158, 262, 553, 563, 917, 1106, 1126, 1834, 3941, 7882, 10349, 20698, 44477, 72443, 73753, 88954, 144886, 147506, 311339, 516271, 622678, 1032542, 5826487, 11652974, 40785409, 81570818]

約数ペア:

[(1, 81570818), (2, 40785409), (7, 11652974), (14, 5826487), (79, 1032542), (131, 622678), (158, 516271), (262, 311339), (553, 147506), (563, 144886), (917, 88954), (1106, 73753), (1126, 72443), (1834, 44477), (3941, 20698), (7882, 10349)]