80655920

素因数分解:

$2^4\times 5^1\times {\mathrm{1008199}}^1$

素因数の和:1008212

約数の個数: 20

約数和(自身を含む): 187525200

約数和(自身を除く): 106869280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1008199, 2016398, 4032796, 5040995, 8065592, 10081990, 16131184, 20163980, 40327960, 80655920]

約数ペア:

[(1, 80655920), (2, 40327960), (4, 20163980), (5, 16131184), (8, 10081990), (10, 8065592), (16, 5040995), (20, 4032796), (40, 2016398), (80, 1008199)]