20488720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36587}}^1$

素因数の和:36607

約数の個数: 40

約数和(自身を含む): 54442944

約数和(自身を除く): 33954224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36587, 73174, 146348, 182935, 256109, 292696, 365870, 512218, 585392, 731740, 1024436, 1280545, 1463480, 2048872, 2561090, 2926960, 4097744, 5122180, 10244360, 20488720]

約数ペア:

[(1, 20488720), (2, 10244360), (4, 5122180), (5, 4097744), (7, 2926960), (8, 2561090), (10, 2048872), (14, 1463480), (16, 1280545), (20, 1024436), (28, 731740), (35, 585392), (40, 512218), (56, 365870), (70, 292696), (80, 256109), (112, 182935), (140, 146348), (280, 73174), (560, 36587)]