20015885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1301}}^1$

素因数の和:1504

約数の個数: 16

約数和(自身を含む): 25592112

約数和(自身を除く): 5576227

約数列:

[1, 5, 17, 85, 181, 905, 1301, 3077, 6505, 15385, 22117, 110585, 235481, 1177405, 4003177, 20015885]

約数ペア:

[(1, 20015885), (5, 4003177), (17, 1177405), (85, 235481), (181, 110585), (905, 22117), (1301, 15385), (3077, 6505)]