204030100

素因数分解:

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

素因数の和:20316

約数の個数: 36

約数和(自身を含む): 447151068

約数和(自身を除く): 243120968

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2525, 5050, 10100, 20201, 40402, 80804, 101005, 202010, 404020, 505025, 1010050, 2020100, 2040301, 4080602, 8161204, 10201505, 20403010, 40806020, 51007525, 102015050, 204030100]

約数ペア:

[(1, 204030100), (2, 102015050), (4, 51007525), (5, 40806020), (10, 20403010), (20, 10201505), (25, 8161204), (50, 4080602), (100, 2040301), (101, 2020100), (202, 1010050), (404, 505025), (505, 404020), (1010, 202010), (2020, 101005), (2525, 80804), (5050, 40402), (10100, 20201)]