20512101540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1607}}^1\times {\mathrm{30391}}^1$

素因数の和:32017

約数の個数: 96

約数和(自身を含む): 65681731584

約数和(自身を除く): 45169630044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1607, 3214, 4821, 6428, 8035, 9642, 11249, 16070, 19284, 22498, 24105, 30391, 32140, 33747, 44996, 48210, 56245, 60782, 67494, 91173, 96420, 112490, 121564, 134988, 151955, 168735, 182346, 212737, 224980, 303910, 337470, 364692, 425474, 455865, 607820, 638211, 674940, 850948, 911730, 1063685, 1276422, 1823460, 2127370, 2552844, 3191055, 4254740, 6382110, 12764220, 48838337, 97676674, 146515011, 195353348, 244191685, 293030022, 341868359, 488383370, 586060044, 683736718, 732575055, 976766740, 1025605077, 1367473436, 1465150110, 1709341795, 2051210154, 2930300220, 3418683590, 4102420308, 5128025385, 6837367180, 10256050770, 20512101540]

約数ペア:

[(1, 20512101540), (2, 10256050770), (3, 6837367180), (4, 5128025385), (5, 4102420308), (6, 3418683590), (7, 2930300220), (10, 2051210154), (12, 1709341795), (14, 1465150110), (15, 1367473436), (20, 1025605077), (21, 976766740), (28, 732575055), (30, 683736718), (35, 586060044), (42, 488383370), (60, 341868359), (70, 293030022), (84, 244191685), (105, 195353348), (140, 146515011), (210, 97676674), (420, 48838337), (1607, 12764220), (3214, 6382110), (4821, 4254740), (6428, 3191055), (8035, 2552844), (9642, 2127370), (11249, 1823460), (16070, 1276422), (19284, 1063685), (22498, 911730), (24105, 850948), (30391, 674940), (32140, 638211), (33747, 607820), (44996, 455865), (48210, 425474), (56245, 364692), (60782, 337470), (67494, 303910), (91173, 224980), (96420, 212737), (112490, 182346), (121564, 168735), (134988, 151955)]