2018643280

素因数分解:

$2^4\times 5^1\times {\mathrm{25233041}}^1$

素因数の和:25233054

約数の個数: 20

約数和(自身を含む): 4693345812

約数和(自身を除く): 2674702532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25233041, 50466082, 100932164, 126165205, 201864328, 252330410, 403728656, 504660820, 1009321640, 2018643280]

約数ペア:

[(1, 2018643280), (2, 1009321640), (4, 504660820), (5, 403728656), (8, 252330410), (10, 201864328), (16, 126165205), (20, 100932164), (40, 50466082), (80, 25233041)]