2770180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 6806016

約数和(自身を除く): 4035836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 421, 470, 658, 842, 940, 1316, 1645, 1684, 2105, 2947, 3290, 4210, 5894, 6580, 8420, 11788, 14735, 19787, 29470, 39574, 58940, 79148, 98935, 138509, 197870, 277018, 395740, 554036, 692545, 1385090, 2770180]

約数ペア:

[(1, 2770180), (2, 1385090), (4, 692545), (5, 554036), (7, 395740), (10, 277018), (14, 197870), (20, 138509), (28, 98935), (35, 79148), (47, 58940), (70, 39574), (94, 29470), (140, 19787), (188, 14735), (235, 11788), (329, 8420), (421, 6580), (470, 5894), (658, 4210), (842, 3290), (940, 2947), (1316, 2105), (1645, 1684)]