43209820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21391}}^1$

素因数の和:21501

約数の個数: 24

約数和(自身を含む): 91643328

約数和(自身を除く): 48433508

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 21391, 42782, 85564, 106955, 213910, 427820, 2160491, 4320982, 8641964, 10802455, 21604910, 43209820]

約数ペア:

[(1, 43209820), (2, 21604910), (4, 10802455), (5, 8641964), (10, 4320982), (20, 2160491), (101, 427820), (202, 213910), (404, 106955), (505, 85564), (1010, 42782), (2020, 21391)]