9780180389

素因数分解:

$7^1\times {\mathrm{1409}}^1\times {\mathrm{991603}}^1$

素因数の和:993019

約数の個数: 8

約数和(自身を含む): 11185293120

約数和(自身を除く): 1405112731

約数列:

[1, 7, 1409, 9863, 991603, 6941221, 1397168627, 9780180389]

約数ペア:

[(1, 9780180389), (7, 1397168627), (1409, 6941221), (9863, 991603)]