645880905

素因数分解:

$3^3\times 5^1\times {\mathrm{4784303}}^1$

素因数の和:4784317

約数の個数: 16

約数和(自身を含む): 1148232960

約数和(自身を除く): 502352055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 4784303, 14352909, 23921515, 43058727, 71764545, 129176181, 215293635, 645880905]

約数ペア:

[(1, 645880905), (3, 215293635), (5, 129176181), (9, 71764545), (15, 43058727), (27, 23921515), (45, 14352909), (135, 4784303)]