221260180

素因数分解:

$2^2\times 5^1\times {\mathrm{11063009}}^1$

素因数の和:11063018

約数の個数: 12

約数和(自身を含む): 464646420

約数和(自身を除く): 243386240

約数列:

[1, 2, 4, 5, 10, 20, 11063009, 22126018, 44252036, 55315045, 110630090, 221260180]

約数ペア:

[(1, 221260180), (2, 110630090), (4, 55315045), (5, 44252036), (10, 22126018), (20, 11063009)]