20778912

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{937}}^1$

素因数の和:971

約数の個数: 144

約数和(自身を含む): 73749312

約数和(自身を除く): 52970400

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 56, 63, 66, 72, 77, 84, 88, 96, 99, 112, 126, 132, 144, 154, 168, 176, 198, 224, 231, 252, 264, 288, 308, 336, 352, 396, 462, 504, 528, 616, 672, 693, 792, 924, 937, 1008, 1056, 1232, 1386, 1584, 1848, 1874, 2016, 2464, 2772, 2811, 3168, 3696, 3748, 5544, 5622, 6559, 7392, 7496, 8433, 10307, 11088, 11244, 13118, 14992, 16866, 19677, 20614, 22176, 22488, 26236, 29984, 30921, 33732, 39354, 41228, 44976, 52472, 59031, 61842, 67464, 72149, 78708, 82456, 89952, 92763, 104944, 118062, 123684, 134928, 144298, 157416, 164912, 185526, 209888, 216447, 236124, 247368, 269856, 288596, 314832, 329824, 371052, 432894, 472248, 494736, 577192, 629664, 649341, 742104, 865788, 944496, 989472, 1154384, 1298682, 1484208, 1731576, 1888992, 2308768, 2597364, 2968416, 3463152, 5194728, 6926304, 10389456, 20778912]

約数ペア:

[(1, 20778912), (2, 10389456), (3, 6926304), (4, 5194728), (6, 3463152), (7, 2968416), (8, 2597364), (9, 2308768), (11, 1888992), (12, 1731576), (14, 1484208), (16, 1298682), (18, 1154384), (21, 989472), (22, 944496), (24, 865788), (28, 742104), (32, 649341), (33, 629664), (36, 577192), (42, 494736), (44, 472248), (48, 432894), (56, 371052), (63, 329824), (66, 314832), (72, 288596), (77, 269856), (84, 247368), (88, 236124), (96, 216447), (99, 209888), (112, 185526), (126, 164912), (132, 157416), (144, 144298), (154, 134928), (168, 123684), (176, 118062), (198, 104944), (224, 92763), (231, 89952), (252, 82456), (264, 78708), (288, 72149), (308, 67464), (336, 61842), (352, 59031), (396, 52472), (462, 44976), (504, 41228), (528, 39354), (616, 33732), (672, 30921), (693, 29984), (792, 26236), (924, 22488), (937, 22176), (1008, 20614), (1056, 19677), (1232, 16866), (1386, 14992), (1584, 13118), (1848, 11244), (1874, 11088), (2016, 10307), (2464, 8433), (2772, 7496), (2811, 7392), (3168, 6559), (3696, 5622), (3748, 5544)]