2000405519

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{653941}}^1$

素因数の和:653990

約数の個数: 16

約数和(自身を含む): 2511137280

約数和(自身を除く): 510731761

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 653941, 4577587, 12424879, 15040643, 86974153, 105284501, 285772217, 2000405519]

約数ペア:

[(1, 2000405519), (7, 285772217), (19, 105284501), (23, 86974153), (133, 15040643), (161, 12424879), (437, 4577587), (3059, 653941)]