85128020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{19087}}^1$

素因数の和:19319

約数の個数: 24

約数和(自身を含む): 179579904

約数和(自身を除く): 94451884

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 19087, 38174, 76348, 95435, 190870, 381740, 4256401, 8512802, 17025604, 21282005, 42564010, 85128020]

約数ペア:

[(1, 85128020), (2, 42564010), (4, 21282005), (5, 17025604), (10, 8512802), (20, 4256401), (223, 381740), (446, 190870), (892, 95435), (1115, 76348), (2230, 38174), (4460, 19087)]