12489800

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 29278260

約数和(自身を除く): 16788460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 317, 394, 634, 788, 985, 1268, 1576, 1585, 1970, 2536, 3170, 3940, 4925, 6340, 7880, 7925, 9850, 12680, 15850, 19700, 31700, 39400, 62449, 63400, 124898, 249796, 312245, 499592, 624490, 1248980, 1561225, 2497960, 3122450, 6244900, 12489800]

約数ペア:

[(1, 12489800), (2, 6244900), (4, 3122450), (5, 2497960), (8, 1561225), (10, 1248980), (20, 624490), (25, 499592), (40, 312245), (50, 249796), (100, 124898), (197, 63400), (200, 62449), (317, 39400), (394, 31700), (634, 19700), (788, 15850), (985, 12680), (1268, 9850), (1576, 7925), (1585, 7880), (1970, 6340), (2536, 4925), (3170, 3940)]