80171240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{17737}}^1$

素因数の和:17861

約数の個数: 32

約数和(自身を含む): 181991880

約数和(自身を除く): 101820640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 17737, 35474, 70948, 88685, 141896, 177370, 354740, 709480, 2004281, 4008562, 8017124, 10021405, 16034248, 20042810, 40085620, 80171240]

約数ペア:

[(1, 80171240), (2, 40085620), (4, 20042810), (5, 16034248), (8, 10021405), (10, 8017124), (20, 4008562), (40, 2004281), (113, 709480), (226, 354740), (452, 177370), (565, 141896), (904, 88685), (1130, 70948), (2260, 35474), (4520, 17737)]