81129755

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 114739200

約数和(自身を除く): 33609445

約数列:

[1, 5, 7, 35, 47, 149, 235, 329, 331, 745, 1043, 1645, 1655, 2317, 5215, 7003, 11585, 15557, 35015, 49021, 49319, 77785, 108899, 245105, 246595, 345233, 544495, 1726165, 2317993, 11589965, 16225951, 81129755]

約数ペア:

[(1, 81129755), (5, 16225951), (7, 11589965), (35, 2317993), (47, 1726165), (149, 544495), (235, 345233), (329, 246595), (331, 245105), (745, 108899), (1043, 77785), (1645, 49319), (1655, 49021), (2317, 35015), (5215, 15557), (7003, 11585)]