20707192016

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{205657}}^1$

素因数の和:205732

約数の個数: 80

約数和(自身を含む): 48963056640

約数和(自身を除く): 28255864624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 56, 58, 62, 112, 116, 124, 203, 217, 232, 248, 406, 434, 464, 496, 812, 868, 899, 1624, 1736, 1798, 3248, 3472, 3596, 6293, 7192, 12586, 14384, 25172, 50344, 100688, 205657, 411314, 822628, 1439599, 1645256, 2879198, 3290512, 5758396, 5964053, 6375367, 11516792, 11928106, 12750734, 23033584, 23856212, 25501468, 41748371, 44627569, 47712424, 51002936, 83496742, 89255138, 95424848, 102005872, 166993484, 178510276, 184885643, 333986968, 357020552, 369771286, 667973936, 714041104, 739542572, 1294199501, 1479085144, 2588399002, 2958170288, 5176798004, 10353596008, 20707192016]

約数ペア:

[(1, 20707192016), (2, 10353596008), (4, 5176798004), (7, 2958170288), (8, 2588399002), (14, 1479085144), (16, 1294199501), (28, 739542572), (29, 714041104), (31, 667973936), (56, 369771286), (58, 357020552), (62, 333986968), (112, 184885643), (116, 178510276), (124, 166993484), (203, 102005872), (217, 95424848), (232, 89255138), (248, 83496742), (406, 51002936), (434, 47712424), (464, 44627569), (496, 41748371), (812, 25501468), (868, 23856212), (899, 23033584), (1624, 12750734), (1736, 11928106), (1798, 11516792), (3248, 6375367), (3472, 5964053), (3596, 5758396), (6293, 3290512), (7192, 2879198), (12586, 1645256), (14384, 1439599), (25172, 822628), (50344, 411314), (100688, 205657)]