19489620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2371}}^1$

素因数の和:2520

約数の個数: 48

約数和(自身を含む): 54992448

約数和(自身を除く): 35502828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2371, 2740, 4110, 4742, 7113, 8220, 9484, 11855, 14226, 23710, 28452, 35565, 47420, 71130, 142260, 324827, 649654, 974481, 1299308, 1624135, 1948962, 3248270, 3897924, 4872405, 6496540, 9744810, 19489620]

約数ペア:

[(1, 19489620), (2, 9744810), (3, 6496540), (4, 4872405), (5, 3897924), (6, 3248270), (10, 1948962), (12, 1624135), (15, 1299308), (20, 974481), (30, 649654), (60, 324827), (137, 142260), (274, 71130), (411, 47420), (548, 35565), (685, 28452), (822, 23710), (1370, 14226), (1644, 11855), (2055, 9484), (2371, 8220), (2740, 7113), (4110, 4742)]