8423720

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1069}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 19067400

約数和(自身を除く): 10643680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1069, 1576, 1970, 2138, 3940, 4276, 5345, 7880, 8552, 10690, 21380, 42760, 210593, 421186, 842372, 1052965, 1684744, 2105930, 4211860, 8423720]

約数ペア:

[(1, 8423720), (2, 4211860), (4, 2105930), (5, 1684744), (8, 1052965), (10, 842372), (20, 421186), (40, 210593), (197, 42760), (394, 21380), (788, 10690), (985, 8552), (1069, 7880), (1576, 5345), (1970, 4276), (2138, 3940)]