20571040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18367}}^1$

素因数の和:18389

約数の個数: 48

約数和(自身を含む): 55544832

約数和(自身を除く): 34973792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18367, 36734, 73468, 91835, 128569, 146936, 183670, 257138, 293872, 367340, 514276, 587744, 642845, 734680, 1028552, 1285690, 1469360, 2057104, 2571380, 2938720, 4114208, 5142760, 10285520, 20571040]

約数ペア:

[(1, 20571040), (2, 10285520), (4, 5142760), (5, 4114208), (7, 2938720), (8, 2571380), (10, 2057104), (14, 1469360), (16, 1285690), (20, 1028552), (28, 734680), (32, 642845), (35, 587744), (40, 514276), (56, 367340), (70, 293872), (80, 257138), (112, 183670), (140, 146936), (160, 128569), (224, 91835), (280, 73468), (560, 36734), (1120, 18367)]