6638925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 11999232

約数和(自身を除く): 5360307

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 127, 205, 255, 381, 425, 615, 635, 697, 1025, 1275, 1905, 2091, 2159, 3075, 3175, 3485, 5207, 6477, 9525, 10455, 10795, 15621, 17425, 26035, 32385, 52275, 53975, 78105, 88519, 130175, 161925, 265557, 390525, 442595, 1327785, 2212975, 6638925]

約数ペア:

[(1, 6638925), (3, 2212975), (5, 1327785), (15, 442595), (17, 390525), (25, 265557), (41, 161925), (51, 130175), (75, 88519), (85, 78105), (123, 53975), (127, 52275), (205, 32385), (255, 26035), (381, 17425), (425, 15621), (615, 10795), (635, 10455), (697, 9525), (1025, 6477), (1275, 5207), (1905, 3485), (2091, 3175), (2159, 3075)]