201260745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{638923}}^1$

素因数の和:638941

約数の個数: 24

約数和(自身を含む): 398688576

約数和(自身を除く): 197427831

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 638923, 1916769, 3194615, 4472461, 5750307, 9583845, 13417383, 22362305, 28751535, 40252149, 67086915, 201260745]

約数ペア:

[(1, 201260745), (3, 67086915), (5, 40252149), (7, 28751535), (9, 22362305), (15, 13417383), (21, 9583845), (35, 5750307), (45, 4472461), (63, 3194615), (105, 1916769), (315, 638923)]