20244880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{701}}^1$

素因数の和:752

約数の個数: 60

約数和(自身を含む): 49747932

約数和(自身を除く): 29503052

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 701, 722, 760, 1402, 1444, 1520, 1805, 2804, 2888, 3505, 3610, 5608, 5776, 7010, 7220, 11216, 13319, 14020, 14440, 26638, 28040, 28880, 53276, 56080, 66595, 106552, 133190, 213104, 253061, 266380, 506122, 532760, 1012244, 1065520, 1265305, 2024488, 2530610, 4048976, 5061220, 10122440, 20244880]

約数ペア:

[(1, 20244880), (2, 10122440), (4, 5061220), (5, 4048976), (8, 2530610), (10, 2024488), (16, 1265305), (19, 1065520), (20, 1012244), (38, 532760), (40, 506122), (76, 266380), (80, 253061), (95, 213104), (152, 133190), (190, 106552), (304, 66595), (361, 56080), (380, 53276), (701, 28880), (722, 28040), (760, 26638), (1402, 14440), (1444, 14020), (1520, 13319), (1805, 11216), (2804, 7220), (2888, 7010), (3505, 5776), (3610, 5608)]