720155853

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{522989}}^1$

素因数の和:523018

約数の個数: 20

約数和(自身を含む): 1139072220

約数和(自身を除く): 418916367

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 522989, 1568967, 4706901, 8890813, 14120703, 26672439, 42362109, 80017317, 240051951, 720155853]

約数ペア:

[(1, 720155853), (3, 240051951), (9, 80017317), (17, 42362109), (27, 26672439), (51, 14120703), (81, 8890813), (153, 4706901), (459, 1568967), (1377, 522989)]