214680920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1657}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 501379200

約数和(自身を除く): 286698280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 158, 164, 205, 316, 328, 395, 410, 632, 790, 820, 1580, 1640, 1657, 3160, 3239, 3314, 6478, 6628, 8285, 12956, 13256, 16195, 16570, 25912, 32390, 33140, 64780, 66280, 67937, 129560, 130903, 135874, 261806, 271748, 339685, 523612, 543496, 654515, 679370, 1047224, 1309030, 1358740, 2618060, 2717480, 5236120, 5367023, 10734046, 21468092, 26835115, 42936184, 53670230, 107340460, 214680920]

約数ペア:

[(1, 214680920), (2, 107340460), (4, 53670230), (5, 42936184), (8, 26835115), (10, 21468092), (20, 10734046), (40, 5367023), (41, 5236120), (79, 2717480), (82, 2618060), (158, 1358740), (164, 1309030), (205, 1047224), (316, 679370), (328, 654515), (395, 543496), (410, 523612), (632, 339685), (790, 271748), (820, 261806), (1580, 135874), (1640, 130903), (1657, 129560), (3160, 67937), (3239, 66280), (3314, 64780), (6478, 33140), (6628, 32390), (8285, 25912), (12956, 16570), (13256, 16195)]