1811320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{6469}}^1$

素因数の和:6487

約数の個数: 32

約数和(自身を含む): 4658400

約数和(自身を除く): 2847080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 6469, 12938, 25876, 32345, 45283, 51752, 64690, 90566, 129380, 181132, 226415, 258760, 362264, 452830, 905660, 1811320]

約数ペア:

[(1, 1811320), (2, 905660), (4, 452830), (5, 362264), (7, 258760), (8, 226415), (10, 181132), (14, 129380), (20, 90566), (28, 64690), (35, 51752), (40, 45283), (56, 32345), (70, 25876), (140, 12938), (280, 6469)]