2783181875

素因数分解:

$5^4\times {\mathrm{1321}}^1\times {\mathrm{3371}}^1$

素因数の和:4712

約数の個数: 20

約数和(自身を含む): 3481529304

約数和(自身を除く): 698347429

約数列:

[1, 5, 25, 125, 625, 1321, 3371, 6605, 16855, 33025, 84275, 165125, 421375, 825625, 2106875, 4453091, 22265455, 111327275, 556636375, 2783181875]

約数ペア:

[(1, 2783181875), (5, 556636375), (25, 111327275), (125, 22265455), (625, 4453091), (1321, 2106875), (3371, 825625), (6605, 421375), (16855, 165125), (33025, 84275)]