256128948

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^2\times {\mathrm{5197}}^1$

素因数の和:5281

約数の個数: 54

約数和(自身を含む): 665536326

約数和(自身を除く): 409407378

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 1369, 2738, 4107, 5197, 5476, 8214, 10394, 12321, 15591, 16428, 20788, 24642, 31182, 46773, 49284, 62364, 93546, 187092, 192289, 384578, 576867, 769156, 1153734, 1730601, 2307468, 3461202, 6922404, 7114693, 14229386, 21344079, 28458772, 42688158, 64032237, 85376316, 128064474, 256128948]

約数ペア:

[(1, 256128948), (2, 128064474), (3, 85376316), (4, 64032237), (6, 42688158), (9, 28458772), (12, 21344079), (18, 14229386), (36, 7114693), (37, 6922404), (74, 3461202), (111, 2307468), (148, 1730601), (222, 1153734), (333, 769156), (444, 576867), (666, 384578), (1332, 192289), (1369, 187092), (2738, 93546), (4107, 62364), (5197, 49284), (5476, 46773), (8214, 31182), (10394, 24642), (12321, 20788), (15591, 16428)]