640853845

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{84713}}^1$

素因数の和:84824

約数の個数: 16

約数和(自身を含む): 823420080

約数和(自身を除く): 182566235

約数列:

[1, 5, 17, 85, 89, 445, 1513, 7565, 84713, 423565, 1440121, 7200605, 7539457, 37697285, 128170769, 640853845]

約数ペア:

[(1, 640853845), (5, 128170769), (17, 37697285), (85, 7539457), (89, 7200605), (445, 1440121), (1513, 423565), (7565, 84713)]