128640908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{265787}}^1$

素因数の和:265813

約数の個数: 18

約数和(自身を含む): 247448628

約数和(自身を除く): 118807720

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 265787, 531574, 1063148, 2923657, 5847314, 11694628, 32160227, 64320454, 128640908]

約数ペア:

[(1, 128640908), (2, 64320454), (4, 32160227), (11, 11694628), (22, 5847314), (44, 2923657), (121, 1063148), (242, 531574), (484, 265787)]