81427856

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{47563}}^1$

素因数の和:47678

約数の個数: 20

約数和(自身を含む): 159244272

約数和(自身を除く): 77816416

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 47563, 95126, 190252, 380504, 761008, 5089241, 10178482, 20356964, 40713928, 81427856]

約数ペア:

[(1, 81427856), (2, 40713928), (4, 20356964), (8, 10178482), (16, 5089241), (107, 761008), (214, 380504), (428, 190252), (856, 95126), (1712, 47563)]