15681200

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:414

約数の個数: 60

約数和(自身を含む): 38055600

約数和(自身を除く): 22374400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 199, 200, 394, 398, 400, 788, 796, 985, 995, 1576, 1592, 1970, 1990, 3152, 3184, 3940, 3980, 4925, 4975, 7880, 7960, 9850, 9950, 15760, 15920, 19700, 19900, 39203, 39400, 39800, 78406, 78800, 79600, 156812, 196015, 313624, 392030, 627248, 784060, 980075, 1568120, 1960150, 3136240, 3920300, 7840600, 15681200]

約数ペア:

[(1, 15681200), (2, 7840600), (4, 3920300), (5, 3136240), (8, 1960150), (10, 1568120), (16, 980075), (20, 784060), (25, 627248), (40, 392030), (50, 313624), (80, 196015), (100, 156812), (197, 79600), (199, 78800), (200, 78406), (394, 39800), (398, 39400), (400, 39203), (788, 19900), (796, 19700), (985, 15920), (995, 15760), (1576, 9950), (1592, 9850), (1970, 7960), (1990, 7880), (3152, 4975), (3184, 4925), (3940, 3980)]