20683760

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5501}}^1$

素因数の和:5561

約数の個数: 40

約数和(自身を含む): 49121856

約数和(自身を除く): 28438096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5501, 11002, 22004, 27505, 44008, 55010, 88016, 110020, 220040, 258547, 440080, 517094, 1034188, 1292735, 2068376, 2585470, 4136752, 5170940, 10341880, 20683760]

約数ペア:

[(1, 20683760), (2, 10341880), (4, 5170940), (5, 4136752), (8, 2585470), (10, 2068376), (16, 1292735), (20, 1034188), (40, 517094), (47, 440080), (80, 258547), (94, 220040), (188, 110020), (235, 88016), (376, 55010), (470, 44008), (752, 27505), (940, 22004), (1880, 11002), (3760, 5501)]