808217780

素因数分解:

$2^2\times 5^1\times {\mathrm{2791}}^1\times {\mathrm{14479}}^1$

素因数の和:17279

約数の個数: 24

約数和(自身を含む): 1697982720

約数和(自身を除く): 889764940

約数列:

[1, 2, 4, 5, 10, 20, 2791, 5582, 11164, 13955, 14479, 27910, 28958, 55820, 57916, 72395, 144790, 289580, 40410889, 80821778, 161643556, 202054445, 404108890, 808217780]

約数ペア:

[(1, 808217780), (2, 404108890), (4, 202054445), (5, 161643556), (10, 80821778), (20, 40410889), (2791, 289580), (5582, 144790), (11164, 72395), (13955, 57916), (14479, 55820), (27910, 28958)]