20172183878

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{256337}}^1$

素因数の和:256437

約数の個数: 48

約数和(自身を含む): 38924412624

約数和(自身を除く): 18752228746

約数列:

[1, 2, 7, 11, 14, 22, 49, 73, 77, 98, 146, 154, 511, 539, 803, 1022, 1078, 1606, 3577, 5621, 7154, 11242, 39347, 78694, 256337, 512674, 1794359, 2819707, 3588718, 5639414, 12560513, 18712601, 19737949, 25121026, 37425202, 39475898, 130988207, 138165643, 205838611, 261976414, 276331286, 411677222, 916917449, 1440870277, 1833834898, 2881740554, 10086091939, 20172183878]

約数ペア:

[(1, 20172183878), (2, 10086091939), (7, 2881740554), (11, 1833834898), (14, 1440870277), (22, 916917449), (49, 411677222), (73, 276331286), (77, 261976414), (98, 205838611), (146, 138165643), (154, 130988207), (511, 39475898), (539, 37425202), (803, 25121026), (1022, 19737949), (1078, 18712601), (1606, 12560513), (3577, 5639414), (5621, 3588718), (7154, 2819707), (11242, 1794359), (39347, 512674), (78694, 256337)]