9985420

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2089}}^1$

素因数の和:2337

約数の個数: 24

約数和(自身を含む): 21067200

約数和(自身を除く): 11081780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2089, 2390, 4178, 4780, 8356, 10445, 20890, 41780, 499271, 998542, 1997084, 2496355, 4992710, 9985420]

約数ペア:

[(1, 9985420), (2, 4992710), (4, 2496355), (5, 1997084), (10, 998542), (20, 499271), (239, 41780), (478, 20890), (956, 10445), (1195, 8356), (2089, 4780), (2390, 4178)]