664305

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 1080384

約数和(自身を除く): 416079

約数列:

[1, 3, 5, 15, 67, 201, 335, 661, 1005, 1983, 3305, 9915, 44287, 132861, 221435, 664305]

約数ペア:

[(1, 664305), (3, 221435), (5, 132861), (15, 44287), (67, 9915), (201, 3305), (335, 1983), (661, 1005)]