865940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1493}}^1$

素因数の和:1531

約数の個数: 24

約数和(自身を含む): 1882440

約数和(自身を除く): 1016500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1493, 2986, 5972, 7465, 14930, 29860, 43297, 86594, 173188, 216485, 432970, 865940]

約数ペア:

[(1, 865940), (2, 432970), (4, 216485), (5, 173188), (10, 86594), (20, 43297), (29, 29860), (58, 14930), (116, 7465), (145, 5972), (290, 2986), (580, 1493)]