20199704025

素因数分解:

$3^1\times 5^2\times {\mathrm{521}}^1\times {\mathrm{516947}}^1$

素因数の和:517481

約数の個数: 24

約数和(自身を含む): 33461010144

約数和(自身を除く): 13261306119

約数列:

[1, 3, 5, 15, 25, 75, 521, 1563, 2605, 7815, 13025, 39075, 516947, 1550841, 2584735, 7754205, 12923675, 38771025, 269329387, 807988161, 1346646935, 4039940805, 6733234675, 20199704025]

約数ペア:

[(1, 20199704025), (3, 6733234675), (5, 4039940805), (15, 1346646935), (25, 807988161), (75, 269329387), (521, 38771025), (1563, 12923675), (2605, 7754205), (7815, 2584735), (13025, 1550841), (39075, 516947)]