639984401

素因数分解:

$7^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1\times {\mathrm{1381}}^1$

素因数の和:1904

約数の個数: 16

約数和(自身を含む): 737656320

約数和(自身を除く): 97671919

約数列:

[1, 7, 239, 277, 1381, 1673, 1939, 9667, 66203, 330059, 382537, 463421, 2310413, 2677759, 91426343, 639984401]

約数ペア:

[(1, 639984401), (7, 91426343), (239, 2677759), (277, 2310413), (1381, 463421), (1673, 382537), (1939, 330059), (9667, 66203)]