28513725

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{8089}}^1$

素因数の和:8149

約数の個数: 24

約数和(自身を含む): 48151680

約数和(自身を除く): 19637955

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 8089, 24267, 40445, 121335, 202225, 380183, 606675, 1140549, 1900915, 5702745, 9504575, 28513725]

約数ペア:

[(1, 28513725), (3, 9504575), (5, 5702745), (15, 1900915), (25, 1140549), (47, 606675), (75, 380183), (141, 202225), (235, 121335), (705, 40445), (1175, 24267), (3525, 8089)]