20556996845

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1\times {\mathrm{3637}}^1$

素因数の和:3990

約数の個数: 64

約数和(自身を含む): 31457465856

約数和(自身を除く): 10900469011

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 277, 371, 385, 583, 1385, 1855, 1939, 2915, 3047, 3637, 4081, 9695, 14681, 15235, 18185, 20405, 21329, 25459, 40007, 73405, 102767, 106645, 127295, 161491, 192761, 200035, 280049, 513835, 807455, 963805, 1007449, 1130437, 1349327, 1400245, 2120371, 5037245, 5652185, 6746635, 7052143, 10601855, 11081939, 14842597, 35260715, 53394797, 55409695, 74212985, 77573573, 266973985, 373763579, 387867865, 587342767, 1868817895, 2936713835, 4111399369, 20556996845]

約数ペア:

[(1, 20556996845), (5, 4111399369), (7, 2936713835), (11, 1868817895), (35, 587342767), (53, 387867865), (55, 373763579), (77, 266973985), (265, 77573573), (277, 74212985), (371, 55409695), (385, 53394797), (583, 35260715), (1385, 14842597), (1855, 11081939), (1939, 10601855), (2915, 7052143), (3047, 6746635), (3637, 5652185), (4081, 5037245), (9695, 2120371), (14681, 1400245), (15235, 1349327), (18185, 1130437), (20405, 1007449), (21329, 963805), (25459, 807455), (40007, 513835), (73405, 280049), (102767, 200035), (106645, 192761), (127295, 161491)]