18913480

素因数分解:

$2^3\times 5^1\times {\mathrm{472837}}^1$

素因数の和:472848

約数の個数: 16

約数和(自身を含む): 42555420

約数和(自身を除く): 23641940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472837, 945674, 1891348, 2364185, 3782696, 4728370, 9456740, 18913480]

約数ペア:

[(1, 18913480), (2, 9456740), (4, 4728370), (5, 3782696), (8, 2364185), (10, 1891348), (20, 945674), (40, 472837)]