289479940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{135271}}^1$

素因数の和:135387

約数の個数: 24

約数和(自身を含む): 613593792

約数和(自身を除く): 324113852

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 135271, 270542, 541084, 676355, 1352710, 2705420, 14473997, 28947994, 57895988, 72369985, 144739970, 289479940]

約数ペア:

[(1, 289479940), (2, 144739970), (4, 72369985), (5, 57895988), (10, 28947994), (20, 14473997), (107, 2705420), (214, 1352710), (428, 676355), (535, 541084), (1070, 270542), (2140, 135271)]