281534025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{220811}}^1$

素因数の和:220841

約数の個数: 24

約数和(自身を含む): 492852384

約数和(自身を除く): 211318359

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 220811, 662433, 1104055, 3312165, 3753787, 5520275, 11261361, 16560825, 18768935, 56306805, 93844675, 281534025]

約数ペア:

[(1, 281534025), (3, 93844675), (5, 56306805), (15, 18768935), (17, 16560825), (25, 11261361), (51, 5520275), (75, 3753787), (85, 3312165), (255, 1104055), (425, 662433), (1275, 220811)]