128438075

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 163650240

約数和(自身を除く): 35212165

約数列:

[1, 5, 25, 47, 235, 281, 389, 1175, 1405, 1945, 7025, 9725, 13207, 18283, 66035, 91415, 109309, 330175, 457075, 546545, 2732725, 5137523, 25687615, 128438075]

約数ペア:

[(1, 128438075), (5, 25687615), (25, 5137523), (47, 2732725), (235, 546545), (281, 457075), (389, 330175), (1175, 109309), (1405, 91415), (1945, 66035), (7025, 18283), (9725, 13207)]