2781906985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{125509}}^1$

素因数の和:125569

約数の個数: 32

約数和(自身を含む): 4048450560

約数和(自身を除く): 1266543575

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 1705, 2015, 4433, 22165, 125509, 627545, 1380599, 1631617, 3890779, 6902995, 8158085, 17947787, 19453895, 42798569, 50580127, 89738935, 213992845, 252900635, 556381397, 2781906985]

約数ペア:

[(1, 2781906985), (5, 556381397), (11, 252900635), (13, 213992845), (31, 89738935), (55, 50580127), (65, 42798569), (143, 19453895), (155, 17947787), (341, 8158085), (403, 6902995), (715, 3890779), (1705, 1631617), (2015, 1380599), (4433, 627545), (22165, 125509)]