28881225

素因数分解:

$3^3\times 5^2\times {\mathrm{42787}}^1$

素因数の和:42806

約数の個数: 24

約数和(自身を含む): 53057120

約数和(自身を除く): 24175895

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 42787, 128361, 213935, 385083, 641805, 1069675, 1155249, 1925415, 3209025, 5776245, 9627075, 28881225]

約数ペア:

[(1, 28881225), (3, 9627075), (5, 5776245), (9, 3209025), (15, 1925415), (25, 1155249), (27, 1069675), (45, 641805), (75, 385083), (135, 213935), (225, 128361), (675, 42787)]