19947540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1069}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 56085120

約数和(自身を除く): 36137580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 1069, 1244, 1555, 1866, 2138, 3110, 3207, 3732, 4276, 4665, 5345, 6220, 6414, 9330, 10690, 12828, 16035, 18660, 21380, 32070, 64140, 332459, 664918, 997377, 1329836, 1662295, 1994754, 3324590, 3989508, 4986885, 6649180, 9973770, 19947540]

約数ペア:

[(1, 19947540), (2, 9973770), (3, 6649180), (4, 4986885), (5, 3989508), (6, 3324590), (10, 1994754), (12, 1662295), (15, 1329836), (20, 997377), (30, 664918), (60, 332459), (311, 64140), (622, 32070), (933, 21380), (1069, 18660), (1244, 16035), (1555, 12828), (1866, 10690), (2138, 9330), (3110, 6414), (3207, 6220), (3732, 5345), (4276, 4665)]