720638397

素因数分解:

$3^3\times {\mathrm{1613}}^1\times {\mathrm{16547}}^1$

素因数の和:18169

約数の個数: 16

約数和(自身を含む): 1068338880

約数和(自身を除く): 347700483

約数列:

[1, 3, 9, 27, 1613, 4839, 14517, 16547, 43551, 49641, 148923, 446769, 26690311, 80070933, 240212799, 720638397]

約数ペア:

[(1, 720638397), (3, 240212799), (9, 80070933), (27, 26690311), (1613, 446769), (4839, 148923), (14517, 49641), (16547, 43551)]