2021906875

素因数分解:

$5^4\times {\mathrm{1511}}^1\times {\mathrm{2141}}^1$

素因数の和:3672

約数の個数: 20

約数和(自身を含む): 2529427824

約数和(自身を除く): 507520949

約数列:

[1, 5, 25, 125, 625, 1511, 2141, 7555, 10705, 37775, 53525, 188875, 267625, 944375, 1338125, 3235051, 16175255, 80876275, 404381375, 2021906875]

約数ペア:

[(1, 2021906875), (5, 404381375), (25, 80876275), (125, 16175255), (625, 3235051), (1511, 1338125), (2141, 944375), (7555, 267625), (10705, 188875), (37775, 53525)]