381890020

素因数分解:

$2^2\times 5^1\times {\mathrm{19094501}}^1$

素因数の和:19094510

約数の個数: 12

約数和(自身を含む): 801969084

約数和(自身を除く): 420079064

約数列:

[1, 2, 4, 5, 10, 20, 19094501, 38189002, 76378004, 95472505, 190945010, 381890020]

約数ペア:

[(1, 381890020), (2, 190945010), (4, 95472505), (5, 76378004), (10, 38189002), (20, 19094501)]