20950681840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{580673}}^1$

素因数の和:580738

約数の個数: 80

約数和(自身を含む): 54434703456

約数和(自身を除く): 33484021616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 2255, 3280, 3608, 4510, 7216, 9020, 18040, 36080, 580673, 1161346, 2322692, 2903365, 4645384, 5806730, 6387403, 9290768, 11613460, 12774806, 23226920, 23807593, 25549612, 31937015, 46453840, 47615186, 51099224, 63874030, 95230372, 102198448, 119037965, 127748060, 190460744, 238075930, 255496120, 261883523, 380921488, 476151860, 510992240, 523767046, 952303720, 1047534092, 1309417615, 1904607440, 2095068184, 2618835230, 4190136368, 5237670460, 10475340920, 20950681840]

約数ペア:

[(1, 20950681840), (2, 10475340920), (4, 5237670460), (5, 4190136368), (8, 2618835230), (10, 2095068184), (11, 1904607440), (16, 1309417615), (20, 1047534092), (22, 952303720), (40, 523767046), (41, 510992240), (44, 476151860), (55, 380921488), (80, 261883523), (82, 255496120), (88, 238075930), (110, 190460744), (164, 127748060), (176, 119037965), (205, 102198448), (220, 95230372), (328, 63874030), (410, 51099224), (440, 47615186), (451, 46453840), (656, 31937015), (820, 25549612), (880, 23807593), (902, 23226920), (1640, 12774806), (1804, 11613460), (2255, 9290768), (3280, 6387403), (3608, 5806730), (4510, 4645384), (7216, 2903365), (9020, 2322692), (18040, 1161346), (36080, 580673)]