20642210

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28277}}^1$

素因数の和:28357

約数の個数: 16

約数和(自身を含む): 37666296

約数和(自身を除く): 17024086

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28277, 56554, 141385, 282770, 2064221, 4128442, 10321105, 20642210]

約数ペア:

[(1, 20642210), (2, 10321105), (5, 4128442), (10, 2064221), (73, 282770), (146, 141385), (365, 56554), (730, 28277)]