355442020

素因数分解:

$2^2\times 5^1\times {\mathrm{17772101}}^1$

素因数の和:17772110

約数の個数: 12

約数和(自身を含む): 746428284

約数和(自身を除く): 390986264

約数列:

[1, 2, 4, 5, 10, 20, 17772101, 35544202, 71088404, 88860505, 177721010, 355442020]

約数ペア:

[(1, 355442020), (2, 177721010), (4, 88860505), (5, 71088404), (10, 35544202), (20, 17772101)]