289647860

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{27691}}^1$

素因数の和:28223

約数の個数: 24

約数和(自身を含む): 609445536

約数和(自身を除く): 319797676

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 2092, 2615, 5230, 10460, 27691, 55382, 110764, 138455, 276910, 553820, 14482393, 28964786, 57929572, 72411965, 144823930, 289647860]

約数ペア:

[(1, 289647860), (2, 144823930), (4, 72411965), (5, 57929572), (10, 28964786), (20, 14482393), (523, 553820), (1046, 276910), (2092, 138455), (2615, 110764), (5230, 55382), (10460, 27691)]