28437940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83641}}^1$

素因数の和:83667

約数の個数: 24

約数和(自身を含む): 63233352

約数和(自身を除く): 34795412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83641, 167282, 334564, 418205, 836410, 1421897, 1672820, 2843794, 5687588, 7109485, 14218970, 28437940]

約数ペア:

[(1, 28437940), (2, 14218970), (4, 7109485), (5, 5687588), (10, 2843794), (17, 1672820), (20, 1421897), (34, 836410), (68, 418205), (85, 334564), (170, 167282), (340, 83641)]