20706530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1069}}^1$

素因数の和:1238

約数の個数: 32

約数和(自身を含む): 40446000

約数和(自身を除く): 19739470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1069, 1490, 1937, 2138, 3874, 5345, 9685, 10690, 13897, 19370, 27794, 69485, 138970, 159281, 318562, 796405, 1592810, 2070653, 4141306, 10353265, 20706530]

約数ペア:

[(1, 20706530), (2, 10353265), (5, 4141306), (10, 2070653), (13, 1592810), (26, 796405), (65, 318562), (130, 159281), (149, 138970), (298, 69485), (745, 27794), (1069, 19370), (1490, 13897), (1937, 10690), (2138, 9685), (3874, 5345)]