81267808

素因数分解:

$2^5\times {\mathrm{127}}^1\times {\mathrm{19997}}^1$

素因数の和:20134

約数の個数: 24

約数和(自身を含む): 161263872

約数和(自身を除く): 79996064

約数列:

[1, 2, 4, 8, 16, 32, 127, 254, 508, 1016, 2032, 4064, 19997, 39994, 79988, 159976, 319952, 639904, 2539619, 5079238, 10158476, 20316952, 40633904, 81267808]

約数ペア:

[(1, 81267808), (2, 40633904), (4, 20316952), (8, 10158476), (16, 5079238), (32, 2539619), (127, 639904), (254, 319952), (508, 159976), (1016, 79988), (2032, 39994), (4064, 19997)]