20320944

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 60496128

約数和(自身を除く): 40175184

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 197, 307, 336, 394, 591, 614, 788, 921, 1182, 1228, 1379, 1576, 1842, 2149, 2364, 2456, 2758, 3152, 3684, 4137, 4298, 4728, 4912, 5516, 6447, 7368, 8274, 8596, 9456, 11032, 12894, 14736, 16548, 17192, 22064, 25788, 33096, 34384, 51576, 60479, 66192, 103152, 120958, 181437, 241916, 362874, 423353, 483832, 725748, 846706, 967664, 1270059, 1451496, 1693412, 2540118, 2902992, 3386824, 5080236, 6773648, 10160472, 20320944]

約数ペア:

[(1, 20320944), (2, 10160472), (3, 6773648), (4, 5080236), (6, 3386824), (7, 2902992), (8, 2540118), (12, 1693412), (14, 1451496), (16, 1270059), (21, 967664), (24, 846706), (28, 725748), (42, 483832), (48, 423353), (56, 362874), (84, 241916), (112, 181437), (168, 120958), (197, 103152), (307, 66192), (336, 60479), (394, 51576), (591, 34384), (614, 33096), (788, 25788), (921, 22064), (1182, 17192), (1228, 16548), (1379, 14736), (1576, 12894), (1842, 11032), (2149, 9456), (2364, 8596), (2456, 8274), (2758, 7368), (3152, 6447), (3684, 5516), (4137, 4912), (4298, 4728)]