638183745

素因数分解:

$3^3\times 5^1\times {\mathrm{4727287}}^1$

素因数の和:4727301

約数の個数: 16

約数和(自身を含む): 1134549120

約数和(自身を除く): 496365375

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 4727287, 14181861, 23636435, 42545583, 70909305, 127636749, 212727915, 638183745]

約数ペア:

[(1, 638183745), (3, 212727915), (5, 127636749), (9, 70909305), (15, 42545583), (27, 23636435), (45, 14181861), (135, 4727287)]