20884055

素因数分解:

$5^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 4651945

約数列:

[1, 5, 139, 151, 199, 695, 755, 995, 20989, 27661, 30049, 104945, 138305, 150245, 4176811, 20884055]

約数ペア:

[(1, 20884055), (5, 4176811), (139, 150245), (151, 138305), (199, 104945), (695, 30049), (755, 27661), (995, 20989)]