28390040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2473}}^1$

素因数の和:2532

約数の個数: 64

約数和(自身を含む): 74813760

約数和(自身を除く): 46423720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2473, 2870, 4946, 5740, 9892, 11480, 12365, 17311, 19784, 24730, 34622, 49460, 69244, 86555, 98920, 101393, 138488, 173110, 202786, 346220, 405572, 506965, 692440, 709751, 811144, 1013930, 1419502, 2027860, 2839004, 3548755, 4055720, 5678008, 7097510, 14195020, 28390040]

約数ペア:

[(1, 28390040), (2, 14195020), (4, 7097510), (5, 5678008), (7, 4055720), (8, 3548755), (10, 2839004), (14, 2027860), (20, 1419502), (28, 1013930), (35, 811144), (40, 709751), (41, 692440), (56, 506965), (70, 405572), (82, 346220), (140, 202786), (164, 173110), (205, 138488), (280, 101393), (287, 98920), (328, 86555), (410, 69244), (574, 49460), (820, 34622), (1148, 24730), (1435, 19784), (1640, 17311), (2296, 12365), (2473, 11480), (2870, 9892), (4946, 5740)]