161356720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{288137}}^1$

素因数の和:288157

約数の個数: 40

約数和(自身を含む): 428749344

約数和(自身を除く): 267392624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 288137, 576274, 1152548, 1440685, 2016959, 2305096, 2881370, 4033918, 4610192, 5762740, 8067836, 10084795, 11525480, 16135672, 20169590, 23050960, 32271344, 40339180, 80678360, 161356720]

約数ペア:

[(1, 161356720), (2, 80678360), (4, 40339180), (5, 32271344), (7, 23050960), (8, 20169590), (10, 16135672), (14, 11525480), (16, 10084795), (20, 8067836), (28, 5762740), (35, 4610192), (40, 4033918), (56, 2881370), (70, 2305096), (80, 2016959), (112, 1440685), (140, 1152548), (280, 576274), (560, 288137)]