19338440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43951}}^1$

素因数の和:43973

約数の個数: 32

約数和(自身を含む): 47468160

約数和(自身を除く): 28129720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43951, 87902, 175804, 219755, 351608, 439510, 483461, 879020, 966922, 1758040, 1933844, 2417305, 3867688, 4834610, 9669220, 19338440]

約数ペア:

[(1, 19338440), (2, 9669220), (4, 4834610), (5, 3867688), (8, 2417305), (10, 1933844), (11, 1758040), (20, 966922), (22, 879020), (40, 483461), (44, 439510), (55, 351608), (88, 219755), (110, 175804), (220, 87902), (440, 43951)]