204920450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{83641}}^1$

素因数の和:83667

約数の個数: 36

約数和(自身を含む): 443386242

約数和(自身を除く): 238465792

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 83641, 167282, 418205, 585487, 836410, 1170974, 2091025, 2927435, 4098409, 4182050, 5854870, 8196818, 14637175, 20492045, 29274350, 40984090, 102460225, 204920450]

約数ペア:

[(1, 204920450), (2, 102460225), (5, 40984090), (7, 29274350), (10, 20492045), (14, 14637175), (25, 8196818), (35, 5854870), (49, 4182050), (50, 4098409), (70, 2927435), (98, 2091025), (175, 1170974), (245, 836410), (350, 585487), (490, 418205), (1225, 167282), (2450, 83641)]