25407860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{74729}}^1$

素因数の和:74755

約数の個数: 24

約数和(自身を含む): 56495880

約数和(自身を除く): 31088020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 74729, 149458, 298916, 373645, 747290, 1270393, 1494580, 2540786, 5081572, 6351965, 12703930, 25407860]

約数ペア:

[(1, 25407860), (2, 12703930), (4, 6351965), (5, 5081572), (10, 2540786), (17, 1494580), (20, 1270393), (34, 747290), (68, 373645), (85, 298916), (170, 149458), (340, 74729)]