85166540

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4297}}^1$

素因数の和:5297

約数の個数: 24

約数和(自身を含む): 179071872

約数和(自身を除く): 93905332

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4297, 4955, 8594, 9910, 17188, 19820, 21485, 42970, 85940, 4258327, 8516654, 17033308, 21291635, 42583270, 85166540]

約数ペア:

[(1, 85166540), (2, 42583270), (4, 21291635), (5, 17033308), (10, 8516654), (20, 4258327), (991, 85940), (1982, 42970), (3964, 21485), (4297, 19820), (4955, 17188), (8594, 9910)]