20403010

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20201}}^1$

素因数の和:20309

約数の個数: 16

約数和(自身を含む): 37090872

約数和(自身を除く): 16687862

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20201, 40402, 101005, 202010, 2040301, 4080602, 10201505, 20403010]

約数ペア:

[(1, 20403010), (2, 10201505), (5, 4080602), (10, 2040301), (101, 202010), (202, 101005), (505, 40402), (1010, 20201)]