18608420

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1447}}^1$

素因数の和:2099

約数の個数: 24

約数和(自身を含む): 39165504

約数和(自身を除く): 20557084

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 1447, 2572, 2894, 3215, 5788, 6430, 7235, 12860, 14470, 28940, 930421, 1860842, 3721684, 4652105, 9304210, 18608420]

約数ペア:

[(1, 18608420), (2, 9304210), (4, 4652105), (5, 3721684), (10, 1860842), (20, 930421), (643, 28940), (1286, 14470), (1447, 12860), (2572, 7235), (2894, 6430), (3215, 5788)]