639307510

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{488021}}^1$

素因数の和:488159

約数の個数: 16

約数和(自身を含む): 1159540272

約数和(自身を除く): 520232762

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 488021, 976042, 2440105, 4880210, 63930751, 127861502, 319653755, 639307510]

約数ペア:

[(1, 639307510), (2, 319653755), (5, 127861502), (10, 63930751), (131, 4880210), (262, 2440105), (655, 976042), (1310, 488021)]