100804420

素因数分解:

$2^2\times 5^1\times {\mathrm{5040221}}^1$

素因数の和:5040230

約数の個数: 12

約数和(自身を含む): 211689324

約数和(自身を除く): 110884904

約数列:

[1, 2, 4, 5, 10, 20, 5040221, 10080442, 20160884, 25201105, 50402210, 100804420]

約数ペア:

[(1, 100804420), (2, 50402210), (4, 25201105), (5, 20160884), (10, 10080442), (20, 5040221)]