25392920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3943}}^1$

素因数の和:3984

約数の個数: 64

約数和(自身を含む): 68152320

約数和(自身を除く): 42759400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3943, 6440, 7886, 15772, 19715, 27601, 31544, 39430, 55202, 78860, 90689, 110404, 138005, 157720, 181378, 220808, 276010, 362756, 453445, 552020, 634823, 725512, 906890, 1104040, 1269646, 1813780, 2539292, 3174115, 3627560, 5078584, 6348230, 12696460, 25392920]

約数ペア:

[(1, 25392920), (2, 12696460), (4, 6348230), (5, 5078584), (7, 3627560), (8, 3174115), (10, 2539292), (14, 1813780), (20, 1269646), (23, 1104040), (28, 906890), (35, 725512), (40, 634823), (46, 552020), (56, 453445), (70, 362756), (92, 276010), (115, 220808), (140, 181378), (161, 157720), (184, 138005), (230, 110404), (280, 90689), (322, 78860), (460, 55202), (644, 39430), (805, 31544), (920, 27601), (1288, 19715), (1610, 15772), (3220, 7886), (3943, 6440)]