42040280

素因数分解:

$2^3\times 5^1\times {\mathrm{1051007}}^1$

素因数の和:1051018

約数の個数: 16

約数和(自身を含む): 94590720

約数和(自身を除く): 52550440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1051007, 2102014, 4204028, 5255035, 8408056, 10510070, 21020140, 42040280]

約数ペア:

[(1, 42040280), (2, 21020140), (4, 10510070), (5, 8408056), (8, 5255035), (10, 4204028), (20, 2102014), (40, 1051007)]