87031280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{155413}}^1$

素因数の和:155433

約数の個数: 40

約数和(自身を含む): 231256032

約数和(自身を除く): 144224752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 155413, 310826, 621652, 777065, 1087891, 1243304, 1554130, 2175782, 2486608, 3108260, 4351564, 5439455, 6216520, 8703128, 10878910, 12433040, 17406256, 21757820, 43515640, 87031280]

約数ペア:

[(1, 87031280), (2, 43515640), (4, 21757820), (5, 17406256), (7, 12433040), (8, 10878910), (10, 8703128), (14, 6216520), (16, 5439455), (20, 4351564), (28, 3108260), (35, 2486608), (40, 2175782), (56, 1554130), (70, 1243304), (80, 1087891), (112, 777065), (140, 621652), (280, 310826), (560, 155413)]