355442980

素因数分解:

$2^2\times 5^1\times {\mathrm{17772149}}^1$

素因数の和:17772158

約数の個数: 12

約数和(自身を含む): 746430300

約数和(自身を除く): 390987320

約数列:

[1, 2, 4, 5, 10, 20, 17772149, 35544298, 71088596, 88860745, 177721490, 355442980]

約数ペア:

[(1, 355442980), (2, 177721490), (4, 88860745), (5, 71088596), (10, 35544298), (20, 17772149)]