20494670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 44585856

約数和(自身を除く): 24091186

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 41, 70, 74, 82, 185, 193, 205, 259, 287, 370, 386, 410, 518, 574, 965, 1295, 1351, 1435, 1517, 1930, 2590, 2702, 2870, 3034, 6755, 7141, 7585, 7913, 10619, 13510, 14282, 15170, 15826, 21238, 35705, 39565, 49987, 53095, 55391, 71410, 79130, 99974, 106190, 110782, 249935, 276955, 292781, 499870, 553910, 585562, 1463905, 2049467, 2927810, 4098934, 10247335, 20494670]

約数ペア:

[(1, 20494670), (2, 10247335), (5, 4098934), (7, 2927810), (10, 2049467), (14, 1463905), (35, 585562), (37, 553910), (41, 499870), (70, 292781), (74, 276955), (82, 249935), (185, 110782), (193, 106190), (205, 99974), (259, 79130), (287, 71410), (370, 55391), (386, 53095), (410, 49987), (518, 39565), (574, 35705), (965, 21238), (1295, 15826), (1351, 15170), (1435, 14282), (1517, 13510), (1930, 10619), (2590, 7913), (2702, 7585), (2870, 7141), (3034, 6755)]