1800420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 5183808

約数和(自身を除く): 3383388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 811, 1110, 1622, 2220, 2433, 3244, 4055, 4866, 8110, 9732, 12165, 16220, 24330, 30007, 48660, 60014, 90021, 120028, 150035, 180042, 300070, 360084, 450105, 600140, 900210, 1800420]

約数ペア:

[(1, 1800420), (2, 900210), (3, 600140), (4, 450105), (5, 360084), (6, 300070), (10, 180042), (12, 150035), (15, 120028), (20, 90021), (30, 60014), (37, 48660), (60, 30007), (74, 24330), (111, 16220), (148, 12165), (185, 9732), (222, 8110), (370, 4866), (444, 4055), (555, 3244), (740, 2433), (811, 2220), (1110, 1622)]