25020520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{463}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 64811520

約数和(自身を除く): 39791000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 386, 463, 772, 926, 965, 1351, 1544, 1852, 1930, 2315, 2702, 3241, 3704, 3860, 4630, 5404, 6482, 6755, 7720, 9260, 10808, 12964, 13510, 16205, 18520, 25928, 27020, 32410, 54040, 64820, 89359, 129640, 178718, 357436, 446795, 625513, 714872, 893590, 1251026, 1787180, 2502052, 3127565, 3574360, 5004104, 6255130, 12510260, 25020520]

約数ペア:

[(1, 25020520), (2, 12510260), (4, 6255130), (5, 5004104), (7, 3574360), (8, 3127565), (10, 2502052), (14, 1787180), (20, 1251026), (28, 893590), (35, 714872), (40, 625513), (56, 446795), (70, 357436), (140, 178718), (193, 129640), (280, 89359), (386, 64820), (463, 54040), (772, 32410), (926, 27020), (965, 25928), (1351, 18520), (1544, 16205), (1852, 13510), (1930, 12964), (2315, 10808), (2702, 9260), (3241, 7720), (3704, 6755), (3860, 6482), (4630, 5404)]