89888440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 208656000

約数和(自身を除く): 118767560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 137, 188, 235, 274, 349, 376, 470, 548, 685, 698, 940, 1096, 1370, 1396, 1745, 1880, 2740, 2792, 3490, 5480, 6439, 6980, 12878, 13960, 16403, 25756, 32195, 32806, 47813, 51512, 64390, 65612, 82015, 95626, 128780, 131224, 164030, 191252, 239065, 257560, 328060, 382504, 478130, 656120, 956260, 1912520, 2247211, 4494422, 8988844, 11236055, 17977688, 22472110, 44944220, 89888440]

約数ペア:

[(1, 89888440), (2, 44944220), (4, 22472110), (5, 17977688), (8, 11236055), (10, 8988844), (20, 4494422), (40, 2247211), (47, 1912520), (94, 956260), (137, 656120), (188, 478130), (235, 382504), (274, 328060), (349, 257560), (376, 239065), (470, 191252), (548, 164030), (685, 131224), (698, 128780), (940, 95626), (1096, 82015), (1370, 65612), (1396, 64390), (1745, 51512), (1880, 47813), (2740, 32806), (2792, 32195), (3490, 25756), (5480, 16403), (6439, 13960), (6980, 12878)]