84666440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{39937}}^1$

素因数の和:40001

約数の個数: 32

約数和(自身を含む): 194098680

約数和(自身を除く): 109432240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 39937, 79874, 159748, 199685, 319496, 399370, 798740, 1597480, 2116661, 4233322, 8466644, 10583305, 16933288, 21166610, 42333220, 84666440]

約数ペア:

[(1, 84666440), (2, 42333220), (4, 21166610), (5, 16933288), (8, 10583305), (10, 8466644), (20, 4233322), (40, 2116661), (53, 1597480), (106, 798740), (212, 399370), (265, 319496), (424, 199685), (530, 159748), (1060, 79874), (2120, 39937)]