6861520

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 16070400

約数和(自身を除く): 9208880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 431, 796, 862, 995, 1592, 1724, 1990, 2155, 3184, 3448, 3980, 4310, 6896, 7960, 8620, 15920, 17240, 34480, 85769, 171538, 343076, 428845, 686152, 857690, 1372304, 1715380, 3430760, 6861520]

約数ペア:

[(1, 6861520), (2, 3430760), (4, 1715380), (5, 1372304), (8, 857690), (10, 686152), (16, 428845), (20, 343076), (40, 171538), (80, 85769), (199, 34480), (398, 17240), (431, 15920), (796, 8620), (862, 7960), (995, 6896), (1592, 4310), (1724, 3980), (1990, 3448), (2155, 3184)]