6781960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3943}}^1$

素因数の和:3997

約数の個数: 32

約数和(自身を含む): 15618240

約数和(自身を除く): 8836280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 3943, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 169549, 339098, 678196, 847745, 1356392, 1695490, 3390980, 6781960]

約数ペア:

[(1, 6781960), (2, 3390980), (4, 1695490), (5, 1356392), (8, 847745), (10, 678196), (20, 339098), (40, 169549), (43, 157720), (86, 78860), (172, 39430), (215, 31544), (344, 19715), (430, 15772), (860, 7886), (1720, 3943)]