20181140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20593}}^1$

素因数の和:20616

約数の個数: 36

約数和(自身を含む): 49302036

約数和(自身を除く): 29120896

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20593, 41186, 82372, 102965, 144151, 205930, 288302, 411860, 576604, 720755, 1009057, 1441510, 2018114, 2883020, 4036228, 5045285, 10090570, 20181140]

約数ペア:

[(1, 20181140), (2, 10090570), (4, 5045285), (5, 4036228), (7, 2883020), (10, 2018114), (14, 1441510), (20, 1009057), (28, 720755), (35, 576604), (49, 411860), (70, 288302), (98, 205930), (140, 144151), (196, 102965), (245, 82372), (490, 41186), (980, 20593)]