81640160

素因数分解:

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

素因数の和:72915

約数の個数: 48

約数和(自身を含む): 220431456

約数和(自身を除く): 138791296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72893, 145786, 291572, 364465, 510251, 583144, 728930, 1020502, 1166288, 1457860, 2041004, 2332576, 2551255, 2915720, 4082008, 5102510, 5831440, 8164016, 10205020, 11662880, 16328032, 20410040, 40820080, 81640160]

約数ペア:

[(1, 81640160), (2, 40820080), (4, 20410040), (5, 16328032), (7, 11662880), (8, 10205020), (10, 8164016), (14, 5831440), (16, 5102510), (20, 4082008), (28, 2915720), (32, 2551255), (35, 2332576), (40, 2041004), (56, 1457860), (70, 1166288), (80, 1020502), (112, 728930), (140, 583144), (160, 510251), (224, 364465), (280, 291572), (560, 145786), (1120, 72893)]