79812080

素因数分解:

$2^4\times 5^1\times {\mathrm{997651}}^1$

素因数の和:997664

約数の個数: 20

約数和(自身を含む): 185563272

約数和(自身を除く): 105751192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997651, 1995302, 3990604, 4988255, 7981208, 9976510, 15962416, 19953020, 39906040, 79812080]

約数ペア:

[(1, 79812080), (2, 39906040), (4, 19953020), (5, 15962416), (8, 9976510), (10, 7981208), (16, 4988255), (20, 3990604), (40, 1995302), (80, 997651)]