40806020

素因数分解:

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

素因数の和:20311

約数の個数: 24

約数和(自身を含む): 86545368

約数和(自身を除く): 45739348

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 20201, 40402, 80804, 101005, 202010, 404020, 2040301, 4080602, 8161204, 10201505, 20403010, 40806020]

約数ペア:

[(1, 40806020), (2, 20403010), (4, 10201505), (5, 8161204), (10, 4080602), (20, 2040301), (101, 404020), (202, 202010), (404, 101005), (505, 80804), (1010, 40402), (2020, 20201)]