1285207540

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{280613}}^1$

素因数の和:280851

約数の個数: 24

約数和(自身を含む): 2710731240

約数和(自身を除く): 1425523700

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 280613, 561226, 1122452, 1403065, 2806130, 5612260, 64260377, 128520754, 257041508, 321301885, 642603770, 1285207540]

約数ペア:

[(1, 1285207540), (2, 642603770), (4, 321301885), (5, 257041508), (10, 128520754), (20, 64260377), (229, 5612260), (458, 2806130), (916, 1403065), (1145, 1122452), (2290, 561226), (4580, 280613)]