85478840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49697}}^1$

素因数の和:49751

約数の個数: 32

約数和(自身を含む): 196804080

約数和(自身を除く): 111325240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 49697, 99394, 198788, 248485, 397576, 496970, 993940, 1987880, 2136971, 4273942, 8547884, 10684855, 17095768, 21369710, 42739420, 85478840]

約数ペア:

[(1, 85478840), (2, 42739420), (4, 21369710), (5, 17095768), (8, 10684855), (10, 8547884), (20, 4273942), (40, 2136971), (43, 1987880), (86, 993940), (172, 496970), (215, 397576), (344, 248485), (430, 198788), (860, 99394), (1720, 49697)]