20791760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23627}}^1$

素因数の和:23651

約数の個数: 40

約数和(自身を含む): 52737696

約数和(自身を除く): 31945936

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23627, 47254, 94508, 118135, 189016, 236270, 259897, 378032, 472540, 519794, 945080, 1039588, 1299485, 1890160, 2079176, 2598970, 4158352, 5197940, 10395880, 20791760]

約数ペア:

[(1, 20791760), (2, 10395880), (4, 5197940), (5, 4158352), (8, 2598970), (10, 2079176), (11, 1890160), (16, 1299485), (20, 1039588), (22, 945080), (40, 519794), (44, 472540), (55, 378032), (80, 259897), (88, 236270), (110, 189016), (176, 118135), (220, 94508), (440, 47254), (880, 23627)]