128840275

素因数分解:

$5^2\times {\mathrm{1901}}^1\times {\mathrm{2711}}^1$

素因数の和:4622

約数の個数: 12

約数和(自身を含む): 159904944

約数和(自身を除く): 31064669

約数列:

[1, 5, 25, 1901, 2711, 9505, 13555, 47525, 67775, 5153611, 25768055, 128840275]

約数ペア:

[(1, 128840275), (5, 25768055), (25, 5153611), (1901, 67775), (2711, 47525), (9505, 13555)]