809920

素因数分解:

$2^6\times 5^1\times {\mathrm{2531}}^1$

素因数の和:2548

約数の個数: 28

約数和(自身を含む): 1929384

約数和(自身を除く): 1119464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2531, 5062, 10124, 12655, 20248, 25310, 40496, 50620, 80992, 101240, 161984, 202480, 404960, 809920]

約数ペア:

[(1, 809920), (2, 404960), (4, 202480), (5, 161984), (8, 101240), (10, 80992), (16, 50620), (20, 40496), (32, 25310), (40, 20248), (64, 12655), (80, 10124), (160, 5062), (320, 2531)]