256190020

素因数分解:

$2^2\times 5^1\times {\mathrm{853}}^1\times {\mathrm{15017}}^1$

素因数の和:15879

約数の個数: 24

約数和(自身を含む): 538665624

約数和(自身を除く): 282475604

約数列:

[1, 2, 4, 5, 10, 20, 853, 1706, 3412, 4265, 8530, 15017, 17060, 30034, 60068, 75085, 150170, 300340, 12809501, 25619002, 51238004, 64047505, 128095010, 256190020]

約数ペア:

[(1, 256190020), (2, 128095010), (4, 64047505), (5, 51238004), (10, 25619002), (20, 12809501), (853, 300340), (1706, 150170), (3412, 75085), (4265, 60068), (8530, 30034), (15017, 17060)]