71319940

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{8123}}^1$

素因数の和:8571

約数の個数: 24

約数和(自身を含む): 150131520

約数和(自身を除く): 78811580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8123, 8780, 16246, 32492, 40615, 81230, 162460, 3565997, 7131994, 14263988, 17829985, 35659970, 71319940]

約数ペア:

[(1, 71319940), (2, 35659970), (4, 17829985), (5, 14263988), (10, 7131994), (20, 3565997), (439, 162460), (878, 81230), (1756, 40615), (2195, 32492), (4390, 16246), (8123, 8780)]