9850000

素因数分解:

$2^4\times 5^5\times {\mathrm{197}}^1$

素因数の和:230

約数の個数: 60

約数和(自身を含む): 23975028

約数和(自身を除く): 14125028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 197, 200, 250, 394, 400, 500, 625, 788, 985, 1000, 1250, 1576, 1970, 2000, 2500, 3125, 3152, 3940, 4925, 5000, 6250, 7880, 9850, 10000, 12500, 15760, 19700, 24625, 25000, 39400, 49250, 50000, 78800, 98500, 123125, 197000, 246250, 394000, 492500, 615625, 985000, 1231250, 1970000, 2462500, 4925000, 9850000]

約数ペア:

[(1, 9850000), (2, 4925000), (4, 2462500), (5, 1970000), (8, 1231250), (10, 985000), (16, 615625), (20, 492500), (25, 394000), (40, 246250), (50, 197000), (80, 123125), (100, 98500), (125, 78800), (197, 50000), (200, 49250), (250, 39400), (394, 25000), (400, 24625), (500, 19700), (625, 15760), (788, 12500), (985, 10000), (1000, 9850), (1250, 7880), (1576, 6250), (1970, 5000), (2000, 4925), (2500, 3940), (3125, 3152)]