19995431050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{289999}}^1$

素因数の和:290215

約数の個数: 48

約数和(自身を含む): 42720480000

約数和(自身を除く): 22725048950

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 197, 350, 394, 985, 1379, 1970, 2758, 4925, 6895, 9850, 13790, 34475, 68950, 289999, 579998, 1449995, 2029993, 2899990, 4059986, 7249975, 10149965, 14499950, 20299930, 50749825, 57129803, 101499650, 114259606, 285649015, 399908621, 571298030, 799817242, 1428245075, 1999543105, 2856490150, 3999086210, 9997715525, 19995431050]

約数ペア:

[(1, 19995431050), (2, 9997715525), (5, 3999086210), (7, 2856490150), (10, 1999543105), (14, 1428245075), (25, 799817242), (35, 571298030), (50, 399908621), (70, 285649015), (175, 114259606), (197, 101499650), (350, 57129803), (394, 50749825), (985, 20299930), (1379, 14499950), (1970, 10149965), (2758, 7249975), (4925, 4059986), (6895, 2899990), (9850, 2029993), (13790, 1449995), (34475, 579998), (68950, 289999)]