66962020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 145410048

約数和(自身を除く): 78448028

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 164, 205, 254, 410, 508, 635, 643, 820, 1270, 1286, 2540, 2572, 3215, 5207, 6430, 10414, 12860, 20828, 26035, 26363, 52070, 52726, 81661, 104140, 105452, 131815, 163322, 263630, 326644, 408305, 527260, 816610, 1633220, 3348101, 6696202, 13392404, 16740505, 33481010, 66962020]

約数ペア:

[(1, 66962020), (2, 33481010), (4, 16740505), (5, 13392404), (10, 6696202), (20, 3348101), (41, 1633220), (82, 816610), (127, 527260), (164, 408305), (205, 326644), (254, 263630), (410, 163322), (508, 131815), (635, 105452), (643, 104140), (820, 81661), (1270, 52726), (1286, 52070), (2540, 26363), (2572, 26035), (3215, 20828), (5207, 12860), (6430, 10414)]