1605225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1259}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 2812320

約数和(自身を除く): 1207095

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1259, 1275, 3777, 6295, 18885, 21403, 31475, 64209, 94425, 107015, 321045, 535075, 1605225]

約数ペア:

[(1, 1605225), (3, 535075), (5, 321045), (15, 107015), (17, 94425), (25, 64209), (51, 31475), (75, 21403), (85, 18885), (255, 6295), (425, 3777), (1259, 1275)]