42140270

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{21391}}^1$

素因数の和:21595

約数の個数: 16

約数和(自身を含む): 76241088

約数和(自身を除く): 34100818

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 21391, 42782, 106955, 213910, 4214027, 8428054, 21070135, 42140270]

約数ペア:

[(1, 42140270), (2, 21070135), (5, 8428054), (10, 4214027), (197, 213910), (394, 106955), (985, 42782), (1970, 21391)]