204100400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{72893}}^1$

素因数の和:72918

約数の個数: 60

約数和(自身を含む): 560409072

約数和(自身を除く): 356308672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 72893, 145786, 291572, 364465, 510251, 583144, 728930, 1020502, 1166288, 1457860, 1822325, 2041004, 2551255, 2915720, 3644650, 4082008, 5102510, 5831440, 7289300, 8164016, 10205020, 12756275, 14578600, 20410040, 25512550, 29157200, 40820080, 51025100, 102050200, 204100400]

約数ペア:

[(1, 204100400), (2, 102050200), (4, 51025100), (5, 40820080), (7, 29157200), (8, 25512550), (10, 20410040), (14, 14578600), (16, 12756275), (20, 10205020), (25, 8164016), (28, 7289300), (35, 5831440), (40, 5102510), (50, 4082008), (56, 3644650), (70, 2915720), (80, 2551255), (100, 2041004), (112, 1822325), (140, 1457860), (175, 1166288), (200, 1020502), (280, 728930), (350, 583144), (400, 510251), (560, 364465), (700, 291572), (1400, 145786), (2800, 72893)]