40665940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{290471}}^1$

素因数の和:290487

約数の個数: 24

約数和(自身を含む): 97598592

約数和(自身を除く): 56932652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 290471, 580942, 1161884, 1452355, 2033297, 2904710, 4066594, 5809420, 8133188, 10166485, 20332970, 40665940]

約数ペア:

[(1, 40665940), (2, 20332970), (4, 10166485), (5, 8133188), (7, 5809420), (10, 4066594), (14, 2904710), (20, 2033297), (28, 1452355), (35, 1161884), (70, 580942), (140, 290471)]