20628580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147347}}^1$

素因数の和:147363

約数の個数: 24

約数和(自身を含む): 49508928

約数和(自身を除く): 28880348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147347, 294694, 589388, 736735, 1031429, 1473470, 2062858, 2946940, 4125716, 5157145, 10314290, 20628580]

約数ペア:

[(1, 20628580), (2, 10314290), (4, 5157145), (5, 4125716), (7, 2946940), (10, 2062858), (14, 1473470), (20, 1031429), (28, 736735), (35, 589388), (70, 294694), (140, 147347)]