205871140

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{39139}}^1$

素因数の和:39411

約数の個数: 24

約数和(自身を含む): 433984320

約数和(自身を除く): 228113180

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 39139, 78278, 156556, 195695, 391390, 782780, 10293557, 20587114, 41174228, 51467785, 102935570, 205871140]

約数ペア:

[(1, 205871140), (2, 102935570), (4, 51467785), (5, 41174228), (10, 20587114), (20, 10293557), (263, 782780), (526, 391390), (1052, 195695), (1315, 156556), (2630, 78278), (5260, 39139)]