20640835

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{941}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 25637472

約数和(自身を除く): 4996637

約数列:

[1, 5, 41, 107, 205, 535, 941, 4387, 4705, 21935, 38581, 100687, 192905, 503435, 4128167, 20640835]

約数ペア:

[(1, 20640835), (5, 4128167), (41, 503435), (107, 192905), (205, 100687), (535, 38581), (941, 21935), (4387, 4705)]