81342992

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{40031}}^1$

素因数の和:40166

約数の個数: 20

約数和(自身を含む): 158846976

約数和(自身を除く): 77503984

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 40031, 80062, 160124, 320248, 640496, 5083937, 10167874, 20335748, 40671496, 81342992]

約数ペア:

[(1, 81342992), (2, 40671496), (4, 20335748), (8, 10167874), (16, 5083937), (127, 640496), (254, 320248), (508, 160124), (1016, 80062), (2032, 40031)]