202866980

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{19469}}^1$

素因数の和:19999

約数の個数: 24

約数和(自身を含む): 426860280

約数和(自身を除く): 223993300

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 19469, 38938, 77876, 97345, 194690, 389380, 10143349, 20286698, 40573396, 50716745, 101433490, 202866980]

約数ペア:

[(1, 202866980), (2, 101433490), (4, 50716745), (5, 40573396), (10, 20286698), (20, 10143349), (521, 389380), (1042, 194690), (2084, 97345), (2605, 77876), (5210, 38938), (10420, 19469)]