197000000

素因数分解:

$2^6\times 5^6\times {\mathrm{197}}^1$

素因数の和:239

約数の個数: 98

約数和(自身を含む): 491126526

約数和(自身を除く): 294126526

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 197, 200, 250, 320, 394, 400, 500, 625, 788, 800, 985, 1000, 1250, 1576, 1600, 1970, 2000, 2500, 3125, 3152, 3940, 4000, 4925, 5000, 6250, 6304, 7880, 8000, 9850, 10000, 12500, 12608, 15625, 15760, 19700, 20000, 24625, 25000, 31250, 31520, 39400, 40000, 49250, 50000, 62500, 63040, 78800, 98500, 100000, 123125, 125000, 157600, 197000, 200000, 246250, 250000, 315200, 394000, 492500, 500000, 615625, 788000, 985000, 1000000, 1231250, 1576000, 1970000, 2462500, 3078125, 3940000, 4925000, 6156250, 7880000, 9850000, 12312500, 19700000, 24625000, 39400000, 49250000, 98500000, 197000000]

約数ペア:

[(1, 197000000), (2, 98500000), (4, 49250000), (5, 39400000), (8, 24625000), (10, 19700000), (16, 12312500), (20, 9850000), (25, 7880000), (32, 6156250), (40, 4925000), (50, 3940000), (64, 3078125), (80, 2462500), (100, 1970000), (125, 1576000), (160, 1231250), (197, 1000000), (200, 985000), (250, 788000), (320, 615625), (394, 500000), (400, 492500), (500, 394000), (625, 315200), (788, 250000), (800, 246250), (985, 200000), (1000, 197000), (1250, 157600), (1576, 125000), (1600, 123125), (1970, 100000), (2000, 98500), (2500, 78800), (3125, 63040), (3152, 62500), (3940, 50000), (4000, 49250), (4925, 40000), (5000, 39400), (6250, 31520), (6304, 31250), (7880, 25000), (8000, 24625), (9850, 20000), (10000, 19700), (12500, 15760), (12608, 15625)]