28436868

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^2\times {\mathrm{577}}^1$

素因数の和:661

約数の個数: 54

約数和(自身を含む): 74005386

約数和(自身を除く): 45568518

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 577, 666, 1154, 1332, 1369, 1731, 2308, 2738, 3462, 4107, 5193, 5476, 6924, 8214, 10386, 12321, 16428, 20772, 21349, 24642, 42698, 49284, 64047, 85396, 128094, 192141, 256188, 384282, 768564, 789913, 1579826, 2369739, 3159652, 4739478, 7109217, 9478956, 14218434, 28436868]

約数ペア:

[(1, 28436868), (2, 14218434), (3, 9478956), (4, 7109217), (6, 4739478), (9, 3159652), (12, 2369739), (18, 1579826), (36, 789913), (37, 768564), (74, 384282), (111, 256188), (148, 192141), (222, 128094), (333, 85396), (444, 64047), (577, 49284), (666, 42698), (1154, 24642), (1332, 21349), (1369, 20772), (1731, 16428), (2308, 12321), (2738, 10386), (3462, 8214), (4107, 6924), (5193, 5476)]