180804517580

素因数分解:

$2^2\times 5^1\times {\mathrm{9040225879}}^1$

素因数の和:9040225888

約数の個数: 12

約数和(自身を含む): 379689486960

約数和(自身を除く): 198884969380

約数列:

[1, 2, 4, 5, 10, 20, 9040225879, 18080451758, 36160903516, 45201129395, 90402258790, 180804517580]

約数ペア:

[(1, 180804517580), (2, 90402258790), (4, 45201129395), (5, 36160903516), (10, 18080451758), (20, 9040225879)]