27900040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99643}}^1$

素因数の和:99661

約数の個数: 32

約数和(自身を含む): 71743680

約数和(自身を除く): 43843640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99643, 199286, 398572, 498215, 697501, 797144, 996430, 1395002, 1992860, 2790004, 3487505, 3985720, 5580008, 6975010, 13950020, 27900040]

約数ペア:

[(1, 27900040), (2, 13950020), (4, 6975010), (5, 5580008), (7, 3985720), (8, 3487505), (10, 2790004), (14, 1992860), (20, 1395002), (28, 996430), (35, 797144), (40, 697501), (56, 498215), (70, 398572), (140, 199286), (280, 99643)]