18865260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 57578976

約数和(自身を除く): 38713716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 337, 622, 674, 933, 1011, 1244, 1348, 1555, 1685, 1866, 2022, 2799, 3033, 3110, 3370, 3732, 4044, 4665, 5055, 5598, 6066, 6220, 6740, 9330, 10110, 11196, 12132, 13995, 15165, 18660, 20220, 27990, 30330, 55980, 60660, 104807, 209614, 314421, 419228, 524035, 628842, 943263, 1048070, 1257684, 1572105, 1886526, 2096140, 3144210, 3773052, 4716315, 6288420, 9432630, 18865260]

約数ペア:

[(1, 18865260), (2, 9432630), (3, 6288420), (4, 4716315), (5, 3773052), (6, 3144210), (9, 2096140), (10, 1886526), (12, 1572105), (15, 1257684), (18, 1048070), (20, 943263), (30, 628842), (36, 524035), (45, 419228), (60, 314421), (90, 209614), (180, 104807), (311, 60660), (337, 55980), (622, 30330), (674, 27990), (933, 20220), (1011, 18660), (1244, 15165), (1348, 13995), (1555, 12132), (1685, 11196), (1866, 10110), (2022, 9330), (2799, 6740), (3033, 6220), (3110, 6066), (3370, 5598), (3732, 5055), (4044, 4665)]