256804516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{42433}}^1$

素因数の和:42543

約数の個数: 24

約数和(自身を含む): 481201560

約数和(自身を除く): 224397044

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 6052, 42433, 84866, 169732, 721361, 1442722, 2885444, 3776537, 7553074, 15106148, 64201129, 128402258, 256804516]

約数ペア:

[(1, 256804516), (2, 128402258), (4, 64201129), (17, 15106148), (34, 7553074), (68, 3776537), (89, 2885444), (178, 1442722), (356, 721361), (1513, 169732), (3026, 84866), (6052, 42433)]