20804916385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{297617}}^1$

素因数の和:297705

約数の個数: 32

約数和(自身を含む): 28799898624

約数和(自身を除く): 7994982239

約数列:

[1, 5, 11, 31, 41, 55, 155, 205, 341, 451, 1271, 1705, 2255, 6355, 13981, 69905, 297617, 1488085, 3273787, 9226127, 12202297, 16368935, 46130635, 61011485, 101487397, 134225267, 378271207, 507436985, 671126335, 1891356035, 4160983277, 20804916385]

約数ペア:

[(1, 20804916385), (5, 4160983277), (11, 1891356035), (31, 671126335), (41, 507436985), (55, 378271207), (155, 134225267), (205, 101487397), (341, 61011485), (451, 46130635), (1271, 16368935), (1705, 12202297), (2255, 9226127), (6355, 3273787), (13981, 1488085), (69905, 297617)]