28690428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{521}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 72436896

約数和(自身を除く): 43746468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 353, 521, 706, 1042, 1059, 1412, 1563, 2084, 2118, 3126, 4236, 4589, 6252, 6773, 9178, 13546, 13767, 18356, 20319, 27092, 27534, 40638, 55068, 81276, 183913, 367826, 551739, 735652, 1103478, 2206956, 2390869, 4781738, 7172607, 9563476, 14345214, 28690428]

約数ペア:

[(1, 28690428), (2, 14345214), (3, 9563476), (4, 7172607), (6, 4781738), (12, 2390869), (13, 2206956), (26, 1103478), (39, 735652), (52, 551739), (78, 367826), (156, 183913), (353, 81276), (521, 55068), (706, 40638), (1042, 27534), (1059, 27092), (1412, 20319), (1563, 18356), (2084, 13767), (2118, 13546), (3126, 9178), (4236, 6773), (4589, 6252)]