90580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 217728

約数和(自身を除く): 127148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 1294, 2588, 3235, 4529, 6470, 9058, 12940, 18116, 22645, 45290, 90580]

約数ペア:

[(1, 90580), (2, 45290), (4, 22645), (5, 18116), (7, 12940), (10, 9058), (14, 6470), (20, 4529), (28, 3235), (35, 2588), (70, 1294), (140, 647)]