28638260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{607}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 69049344

約数和(自身を除く): 40411084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 607, 674, 1214, 1348, 1685, 2359, 2428, 3035, 3370, 4249, 4718, 6070, 6740, 8498, 9436, 11795, 12140, 16996, 21245, 23590, 42490, 47180, 84980, 204559, 409118, 818236, 1022795, 1431913, 2045590, 2863826, 4091180, 5727652, 7159565, 14319130, 28638260]

約数ペア:

[(1, 28638260), (2, 14319130), (4, 7159565), (5, 5727652), (7, 4091180), (10, 2863826), (14, 2045590), (20, 1431913), (28, 1022795), (35, 818236), (70, 409118), (140, 204559), (337, 84980), (607, 47180), (674, 42490), (1214, 23590), (1348, 21245), (1685, 16996), (2359, 12140), (2428, 11795), (3035, 9436), (3370, 8498), (4249, 6740), (4718, 6070)]