20767210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2161}}^1$

素因数の和:2230

約数の個数: 24

約数和(自身を含む): 38643588

約数和(自身を除く): 17876378

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 2161, 4322, 4805, 9610, 10805, 21610, 66991, 133982, 334955, 669910, 2076721, 4153442, 10383605, 20767210]

約数ペア:

[(1, 20767210), (2, 10383605), (5, 4153442), (10, 2076721), (31, 669910), (62, 334955), (155, 133982), (310, 66991), (961, 21610), (1922, 10805), (2161, 9610), (4322, 4805)]