215687025

素因数分解:

$3^2\times 5^2\times {\mathrm{958609}}^1$

素因数の和:958625

約数の個数: 18

約数和(自身を含む): 386319830

約数和(自身を除く): 170632805

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 958609, 2875827, 4793045, 8627481, 14379135, 23965225, 43137405, 71895675, 215687025]

約数ペア:

[(1, 215687025), (3, 71895675), (5, 43137405), (9, 23965225), (15, 14379135), (25, 8627481), (45, 4793045), (75, 2875827), (225, 958609)]