81691794436

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{505031}}^1$

素因数の和:505204

約数の個数: 48

約数和(自身を含む): 167993844480

約数和(自身を除く): 86302050044

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 109, 212, 218, 371, 436, 742, 763, 1484, 1526, 3052, 5777, 11554, 23108, 40439, 80878, 161756, 505031, 1010062, 2020124, 3535217, 7070434, 14140868, 26766643, 53533286, 55048379, 107066572, 110096758, 187366501, 220193516, 374733002, 385338653, 749466004, 770677306, 1541354612, 2917564087, 5835128174, 11670256348, 20422948609, 40845897218, 81691794436]

約数ペア:

[(1, 81691794436), (2, 40845897218), (4, 20422948609), (7, 11670256348), (14, 5835128174), (28, 2917564087), (53, 1541354612), (106, 770677306), (109, 749466004), (212, 385338653), (218, 374733002), (371, 220193516), (436, 187366501), (742, 110096758), (763, 107066572), (1484, 55048379), (1526, 53533286), (3052, 26766643), (5777, 14140868), (11554, 7070434), (23108, 3535217), (40439, 2020124), (80878, 1010062), (161756, 505031)]