210855980

素因数分解:

$2^2\times 5^1\times {\mathrm{10542799}}^1$

素因数の和:10542808

約数の個数: 12

約数和(自身を含む): 442797600

約数和(自身を除く): 231941620

約数列:

[1, 2, 4, 5, 10, 20, 10542799, 21085598, 42171196, 52713995, 105427990, 210855980]

約数ペア:

[(1, 210855980), (2, 105427990), (4, 52713995), (5, 42171196), (10, 21085598), (20, 10542799)]