67431640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{16691}}^1$

素因数の和:16803

約数の個数: 32

約数和(自身を含む): 153232560

約数和(自身を除く): 85800920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 16691, 33382, 66764, 83455, 133528, 166910, 333820, 667640, 1685791, 3371582, 6743164, 8428955, 13486328, 16857910, 33715820, 67431640]

約数ペア:

[(1, 67431640), (2, 33715820), (4, 16857910), (5, 13486328), (8, 8428955), (10, 6743164), (20, 3371582), (40, 1685791), (101, 667640), (202, 333820), (404, 166910), (505, 133528), (808, 83455), (1010, 66764), (2020, 33382), (4040, 16691)]