68487440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{122299}}^1$

素因数の和:122319

約数の個数: 40

約数和(自身を含む): 181982400

約数和(自身を除く): 113494960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 122299, 244598, 489196, 611495, 856093, 978392, 1222990, 1712186, 1956784, 2445980, 3424372, 4280465, 4891960, 6848744, 8560930, 9783920, 13697488, 17121860, 34243720, 68487440]

約数ペア:

[(1, 68487440), (2, 34243720), (4, 17121860), (5, 13697488), (7, 9783920), (8, 8560930), (10, 6848744), (14, 4891960), (16, 4280465), (20, 3424372), (28, 2445980), (35, 1956784), (40, 1712186), (56, 1222990), (70, 978392), (80, 856093), (112, 611495), (140, 489196), (280, 244598), (560, 122299)]