218965275

素因数分解:

$3^4\times 5^2\times {\mathrm{108131}}^1$

素因数の和:108153

約数の個数: 30

約数和(自身を含む): 405603132

約数和(自身を除く): 186637857

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 108131, 324393, 540655, 973179, 1621965, 2703275, 2919537, 4865895, 8109825, 8758611, 14597685, 24329475, 43793055, 72988425, 218965275]

約数ペア:

[(1, 218965275), (3, 72988425), (5, 43793055), (9, 24329475), (15, 14597685), (25, 8758611), (27, 8109825), (45, 4865895), (75, 2919537), (81, 2703275), (135, 1621965), (225, 973179), (405, 540655), (675, 324393), (2025, 108131)]