2018184020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{999101}}^1$

素因数の和:999211

約数の個数: 24

約数和(自身を含む): 4280152968

約数和(自身を除く): 2261968948

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 999101, 1998202, 3996404, 4995505, 9991010, 19982020, 100909201, 201818402, 403636804, 504546005, 1009092010, 2018184020]

約数ペア:

[(1, 2018184020), (2, 1009092010), (4, 504546005), (5, 403636804), (10, 201818402), (20, 100909201), (101, 19982020), (202, 9991010), (404, 4995505), (505, 3996404), (1010, 1998202), (2020, 999101)]