128546978

素因数分解:

$2^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{4621}}^1$

素因数の和:6617

約数の個数: 16

約数和(自身を含む): 220524864

約数和(自身を除く): 91977886

約数列:

[1, 2, 7, 14, 1987, 3974, 4621, 9242, 13909, 27818, 32347, 64694, 9181927, 18363854, 64273489, 128546978]

約数ペア:

[(1, 128546978), (2, 64273489), (7, 18363854), (14, 9181927), (1987, 64694), (3974, 32347), (4621, 27818), (9242, 13909)]