18002008

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 17456552

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 227, 431, 454, 862, 908, 1724, 1816, 3448, 5221, 9913, 10442, 19826, 20884, 39652, 41768, 79304, 97837, 195674, 391348, 782696, 2250251, 4500502, 9001004, 18002008]

約数ペア:

[(1, 18002008), (2, 9001004), (4, 4500502), (8, 2250251), (23, 782696), (46, 391348), (92, 195674), (184, 97837), (227, 79304), (431, 41768), (454, 39652), (862, 20884), (908, 19826), (1724, 10442), (1816, 9913), (3448, 5221)]