664275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 1165104

約数和(自身を除く): 500829

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 521, 1275, 1563, 2605, 7815, 8857, 13025, 26571, 39075, 44285, 132855, 221425, 664275]

約数ペア:

[(1, 664275), (3, 221425), (5, 132855), (15, 44285), (17, 39075), (25, 26571), (51, 13025), (75, 8857), (85, 7815), (255, 2605), (425, 1563), (521, 1275)]