858245480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{212437}}^1$

素因数の和:212549

約数の個数: 32

約数和(自身を含む): 1950180840

約数和(自身を除く): 1091935360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 212437, 424874, 849748, 1062185, 1699496, 2124370, 4248740, 8497480, 21456137, 42912274, 85824548, 107280685, 171649096, 214561370, 429122740, 858245480]

約数ペア:

[(1, 858245480), (2, 429122740), (4, 214561370), (5, 171649096), (8, 107280685), (10, 85824548), (20, 42912274), (40, 21456137), (101, 8497480), (202, 4248740), (404, 2124370), (505, 1699496), (808, 1062185), (1010, 849748), (2020, 424874), (4040, 212437)]