389621128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1531}}^1\times {\mathrm{2447}}^1$

素因数の和:3997

約数の個数: 32

約数和(自身を含む): 787570560

約数和(自身を除く): 397949432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1531, 2447, 3062, 4894, 6124, 9788, 12248, 19576, 19903, 31811, 39806, 63622, 79612, 127244, 159224, 254488, 3746357, 7492714, 14985428, 29970856, 48702641, 97405282, 194810564, 389621128]

約数ペア:

[(1, 389621128), (2, 194810564), (4, 97405282), (8, 48702641), (13, 29970856), (26, 14985428), (52, 7492714), (104, 3746357), (1531, 254488), (2447, 159224), (3062, 127244), (4894, 79612), (6124, 63622), (9788, 39806), (12248, 31811), (19576, 19903)]