16778120

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4153}}^1$

素因数の和:4265

約数の個数: 32

約数和(自身を含む): 38133720

約数和(自身を除く): 21355600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4153, 8306, 16612, 20765, 33224, 41530, 83060, 166120, 419453, 838906, 1677812, 2097265, 3355624, 4194530, 8389060, 16778120]

約数ペア:

[(1, 16778120), (2, 8389060), (4, 4194530), (5, 3355624), (8, 2097265), (10, 1677812), (20, 838906), (40, 419453), (101, 166120), (202, 83060), (404, 41530), (505, 33224), (808, 20765), (1010, 16612), (2020, 8306), (4040, 4153)]