204179620

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{20963}}^1$

素因数の和:21459

約数の個数: 24

約数和(自身を含む): 429678144

約数和(自身を除く): 225498524

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 20963, 41926, 83852, 104815, 209630, 419260, 10208981, 20417962, 40835924, 51044905, 102089810, 204179620]

約数ペア:

[(1, 204179620), (2, 102089810), (4, 51044905), (5, 40835924), (10, 20417962), (20, 10208981), (487, 419260), (974, 209630), (1948, 104815), (2435, 83852), (4870, 41926), (9740, 20963)]