2155620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 6205248

約数和(自身を除く): 4049628

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, 971, 1110, 1942, 2220, 2913, 3884, 4855, 5826, 9710, 11652, 14565, 19420, 29130, 35927, 58260, 71854, 107781, 143708, 179635, 215562, 359270, 431124, 538905, 718540, 1077810, 2155620]

約数ペア:

[(1, 2155620), (2, 1077810), (3, 718540), (4, 538905), (5, 431124), (6, 359270), (10, 215562), (12, 179635), (15, 143708), (20, 107781), (30, 71854), (37, 58260), (60, 35927), (74, 29130), (111, 19420), (148, 14565), (185, 11652), (222, 9710), (370, 5826), (444, 4855), (555, 3884), (740, 2913), (971, 2220), (1110, 1942)]