19826840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45061}}^1$

素因数の和:45083

約数の個数: 32

約数和(自身を含む): 48666960

約数和(自身を除く): 28840120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45061, 90122, 180244, 225305, 360488, 450610, 495671, 901220, 991342, 1802440, 1982684, 2478355, 3965368, 4956710, 9913420, 19826840]

約数ペア:

[(1, 19826840), (2, 9913420), (4, 4956710), (5, 3965368), (8, 2478355), (10, 1982684), (11, 1802440), (20, 991342), (22, 901220), (40, 495671), (44, 450610), (55, 360488), (88, 225305), (110, 180244), (220, 90122), (440, 45061)]