1280940730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1\times {\mathrm{2609}}^1$

素因数の和:4338

約数の個数: 32

約数和(自身を含む): 2387523600

約数和(自身を除く): 1106582870

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 1693, 2609, 3386, 5218, 8465, 13045, 16930, 26090, 49097, 75661, 98194, 151322, 245485, 378305, 490970, 756610, 4417037, 8834074, 22085185, 44170370, 128094073, 256188146, 640470365, 1280940730]

約数ペア:

[(1, 1280940730), (2, 640470365), (5, 256188146), (10, 128094073), (29, 44170370), (58, 22085185), (145, 8834074), (290, 4417037), (1693, 756610), (2609, 490970), (3386, 378305), (5218, 245485), (8465, 151322), (13045, 98194), (16930, 75661), (26090, 49097)]