6455560

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{811}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 14616000

約数和(自身を除く): 8160440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 811, 995, 1592, 1622, 1990, 3244, 3980, 4055, 6488, 7960, 8110, 16220, 32440, 161389, 322778, 645556, 806945, 1291112, 1613890, 3227780, 6455560]

約数ペア:

[(1, 6455560), (2, 3227780), (4, 1613890), (5, 1291112), (8, 806945), (10, 645556), (20, 322778), (40, 161389), (199, 32440), (398, 16220), (796, 8110), (811, 7960), (995, 6488), (1592, 4055), (1622, 3980), (1990, 3244)]