20893400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9497}}^1$

素因数の和:9524

約数の個数: 48

約数和(自身を含む): 52998840

約数和(自身を除く): 32105440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9497, 18994, 37988, 47485, 75976, 94970, 104467, 189940, 208934, 237425, 379880, 417868, 474850, 522335, 835736, 949700, 1044670, 1899400, 2089340, 2611675, 4178680, 5223350, 10446700, 20893400]

約数ペア:

[(1, 20893400), (2, 10446700), (4, 5223350), (5, 4178680), (8, 2611675), (10, 2089340), (11, 1899400), (20, 1044670), (22, 949700), (25, 835736), (40, 522335), (44, 474850), (50, 417868), (55, 379880), (88, 237425), (100, 208934), (110, 189940), (200, 104467), (220, 94970), (275, 75976), (440, 47485), (550, 37988), (1100, 18994), (2200, 9497)]