128705759

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 168892416

約数和(自身を除く): 40186657

約数列:

[1, 7, 13, 17, 91, 119, 221, 271, 307, 1547, 1897, 2149, 3523, 3991, 4607, 5219, 24661, 27937, 32249, 36533, 59891, 67847, 83197, 419237, 474929, 582379, 1081561, 1414349, 7570927, 9900443, 18386537, 128705759]

約数ペア:

[(1, 128705759), (7, 18386537), (13, 9900443), (17, 7570927), (91, 1414349), (119, 1081561), (221, 582379), (271, 474929), (307, 419237), (1547, 83197), (1897, 67847), (2149, 59891), (3523, 36533), (3991, 32249), (4607, 27937), (5219, 24661)]