20805216465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{9059}}^1$

素因数の和:9558

約数の個数: 64

約数和(自身を含む): 37573632000

約数和(自身を除く): 16768415535

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 449, 465, 1023, 1347, 1705, 2245, 4939, 5115, 6735, 9059, 13919, 14817, 24695, 27177, 41757, 45295, 69595, 74085, 99649, 135885, 153109, 208785, 280829, 298947, 459327, 498245, 765545, 842487, 1404145, 1494735, 2296635, 3089119, 4067491, 4212435, 9267357, 12202473, 15445595, 20337455, 44742401, 46336785, 61012365, 126092221, 134227203, 223712005, 378276663, 630461105, 671136015, 1387014431, 1891383315, 4161043293, 6935072155, 20805216465]

約数ペア:

[(1, 20805216465), (3, 6935072155), (5, 4161043293), (11, 1891383315), (15, 1387014431), (31, 671136015), (33, 630461105), (55, 378276663), (93, 223712005), (155, 134227203), (165, 126092221), (341, 61012365), (449, 46336785), (465, 44742401), (1023, 20337455), (1347, 15445595), (1705, 12202473), (2245, 9267357), (4939, 4212435), (5115, 4067491), (6735, 3089119), (9059, 2296635), (13919, 1494735), (14817, 1404145), (24695, 842487), (27177, 765545), (41757, 498245), (45295, 459327), (69595, 298947), (74085, 280829), (99649, 208785), (135885, 153109)]