80849660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{37087}}^1$

素因数の和:37205

約数の個数: 24

約数和(自身を含む): 171346560

約数和(自身を除く): 90496900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 37087, 74174, 148348, 185435, 370870, 741740, 4042483, 8084966, 16169932, 20212415, 40424830, 80849660]

約数ペア:

[(1, 80849660), (2, 40424830), (4, 20212415), (5, 16169932), (10, 8084966), (20, 4042483), (109, 741740), (218, 370870), (436, 185435), (545, 148348), (1090, 74174), (2180, 37087)]