28772225860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{974009}}^1$

素因数の和:974236

約数の個数: 48

約数和(自身を含む): 69380680320

約数和(自身を除く): 40608454460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 7385, 14770, 29540, 974009, 1948018, 3896036, 4870045, 6818063, 9740090, 13636126, 19480180, 27272252, 34090315, 68180630, 136361260, 205515899, 411031798, 822063596, 1027579495, 1438611293, 2055158990, 2877222586, 4110317980, 5754445172, 7193056465, 14386112930, 28772225860]

約数ペア:

[(1, 28772225860), (2, 14386112930), (4, 7193056465), (5, 5754445172), (7, 4110317980), (10, 2877222586), (14, 2055158990), (20, 1438611293), (28, 1027579495), (35, 822063596), (70, 411031798), (140, 205515899), (211, 136361260), (422, 68180630), (844, 34090315), (1055, 27272252), (1477, 19480180), (2110, 13636126), (2954, 9740090), (4220, 6818063), (5908, 4870045), (7385, 3896036), (14770, 1948018), (29540, 974009)]