84355580

素因数分解:

$2^2\times 5^1\times {\mathrm{4217779}}^1$

素因数の和:4217788

約数の個数: 12

約数和(自身を含む): 177146760

約数和(自身を除く): 92791180

約数列:

[1, 2, 4, 5, 10, 20, 4217779, 8435558, 16871116, 21088895, 42177790, 84355580]

約数ペア:

[(1, 84355580), (2, 42177790), (4, 21088895), (5, 16871116), (10, 8435558), (20, 4217779)]