1666425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 2919456

約数和(自身を除く): 1253031

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 1307, 3921, 6535, 19605, 22219, 32675, 66657, 98025, 111095, 333285, 555475, 1666425]

約数ペア:

[(1, 1666425), (3, 555475), (5, 333285), (15, 111095), (17, 98025), (25, 66657), (51, 32675), (75, 22219), (85, 19605), (255, 6535), (425, 3921), (1275, 1307)]