222500920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{129361}}^1$

素因数の和:129415

約数の個数: 32

約数和(自身を含む): 512273520

約数和(自身を除く): 289772600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 129361, 258722, 517444, 646805, 1034888, 1293610, 2587220, 5174440, 5562523, 11125046, 22250092, 27812615, 44500184, 55625230, 111250460, 222500920]

約数ペア:

[(1, 222500920), (2, 111250460), (4, 55625230), (5, 44500184), (8, 27812615), (10, 22250092), (20, 11125046), (40, 5562523), (43, 5174440), (86, 2587220), (172, 1293610), (215, 1034888), (344, 646805), (430, 517444), (860, 258722), (1720, 129361)]