28296620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128621}}^1$

素因数の和:128641

約数の個数: 24

約数和(自身を含む): 64825488

約数和(自身を除く): 36528868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128621, 257242, 514484, 643105, 1286210, 1414831, 2572420, 2829662, 5659324, 7074155, 14148310, 28296620]

約数ペア:

[(1, 28296620), (2, 14148310), (4, 7074155), (5, 5659324), (10, 2829662), (11, 2572420), (20, 1414831), (22, 1286210), (44, 643105), (55, 514484), (110, 257242), (220, 128621)]