80997080

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2503}}^1$

素因数の和:3323

約数の個数: 32

約数和(自身を含む): 182541600

約数和(自身を除く): 101544520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2503, 3236, 4045, 5006, 6472, 8090, 10012, 12515, 16180, 20024, 25030, 32360, 50060, 100120, 2024927, 4049854, 8099708, 10124635, 16199416, 20249270, 40498540, 80997080]

約数ペア:

[(1, 80997080), (2, 40498540), (4, 20249270), (5, 16199416), (8, 10124635), (10, 8099708), (20, 4049854), (40, 2024927), (809, 100120), (1618, 50060), (2503, 32360), (3236, 25030), (4045, 20024), (5006, 16180), (6472, 12515), (8090, 10012)]