83564420

素因数分解:

$2^2\times 5^1\times {\mathrm{4178221}}^1$

素因数の和:4178230

約数の個数: 12

約数和(自身を含む): 175485324

約数和(自身を除く): 91920904

約数列:

[1, 2, 4, 5, 10, 20, 4178221, 8356442, 16712884, 20891105, 41782210, 83564420]

約数ペア:

[(1, 83564420), (2, 41782210), (4, 20891105), (5, 16712884), (10, 8356442), (20, 4178221)]