81789444

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2909}}^1$

素因数の和:3001

約数の個数: 72

約数和(自身を含む): 228795840

約数和(自身を除く): 147006396

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 781, 852, 1278, 1562, 2343, 2556, 2909, 3124, 4686, 5818, 7029, 8727, 9372, 11636, 14058, 17454, 26181, 28116, 31999, 34908, 52362, 63998, 95997, 104724, 127996, 191994, 206539, 287991, 383988, 413078, 575982, 619617, 826156, 1151964, 1239234, 1858851, 2271929, 2478468, 3717702, 4543858, 6815787, 7435404, 9087716, 13631574, 20447361, 27263148, 40894722, 81789444]

約数ペア:

[(1, 81789444), (2, 40894722), (3, 27263148), (4, 20447361), (6, 13631574), (9, 9087716), (11, 7435404), (12, 6815787), (18, 4543858), (22, 3717702), (33, 2478468), (36, 2271929), (44, 1858851), (66, 1239234), (71, 1151964), (99, 826156), (132, 619617), (142, 575982), (198, 413078), (213, 383988), (284, 287991), (396, 206539), (426, 191994), (639, 127996), (781, 104724), (852, 95997), (1278, 63998), (1562, 52362), (2343, 34908), (2556, 31999), (2909, 28116), (3124, 26181), (4686, 17454), (5818, 14058), (7029, 11636), (8727, 9372)]