20528040540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1039921}}^1$

素因数の和:1039987

約数の個数: 96

約数和(自身を含む): 67087448064

約数和(自身を除く): 46559407524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1316, 1410, 1645, 1974, 2820, 3290, 3948, 4935, 6580, 9870, 19740, 1039921, 2079842, 3119763, 4159684, 5199605, 6239526, 7279447, 10399210, 12479052, 14558894, 15598815, 20798420, 21838341, 29117788, 31197630, 36397235, 43676682, 48876287, 62395260, 72794470, 87353364, 97752574, 109191705, 145588940, 146628861, 195505148, 218383410, 244381435, 293257722, 342134009, 436766820, 488762870, 586515444, 684268018, 733144305, 977525740, 1026402027, 1368536036, 1466288610, 1710670045, 2052804054, 2932577220, 3421340090, 4105608108, 5132010135, 6842680180, 10264020270, 20528040540]

約数ペア:

[(1, 20528040540), (2, 10264020270), (3, 6842680180), (4, 5132010135), (5, 4105608108), (6, 3421340090), (7, 2932577220), (10, 2052804054), (12, 1710670045), (14, 1466288610), (15, 1368536036), (20, 1026402027), (21, 977525740), (28, 733144305), (30, 684268018), (35, 586515444), (42, 488762870), (47, 436766820), (60, 342134009), (70, 293257722), (84, 244381435), (94, 218383410), (105, 195505148), (140, 146628861), (141, 145588940), (188, 109191705), (210, 97752574), (235, 87353364), (282, 72794470), (329, 62395260), (420, 48876287), (470, 43676682), (564, 36397235), (658, 31197630), (705, 29117788), (940, 21838341), (987, 20798420), (1316, 15598815), (1410, 14558894), (1645, 12479052), (1974, 10399210), (2820, 7279447), (3290, 6239526), (3948, 5199605), (4935, 4159684), (6580, 3119763), (9870, 2079842), (19740, 1039921)]