81664976

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{57349}}^1$

素因数の和:57446

約数の個数: 20

約数和(自身を含む): 160006500

約数和(自身を除く): 78341524

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 57349, 114698, 229396, 458792, 917584, 5104061, 10208122, 20416244, 40832488, 81664976]

約数ペア:

[(1, 81664976), (2, 40832488), (4, 20416244), (8, 10208122), (16, 5104061), (89, 917584), (178, 458792), (356, 229396), (712, 114698), (1424, 57349)]