74902180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 166320000

約数和(自身を除く): 91417820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 439, 449, 878, 898, 1756, 1796, 2195, 2245, 4390, 4490, 8341, 8531, 8780, 8980, 16682, 17062, 33364, 34124, 41705, 42655, 83410, 85310, 166820, 170620, 197111, 394222, 788444, 985555, 1971110, 3745109, 3942220, 7490218, 14980436, 18725545, 37451090, 74902180]

約数ペア:

[(1, 74902180), (2, 37451090), (4, 18725545), (5, 14980436), (10, 7490218), (19, 3942220), (20, 3745109), (38, 1971110), (76, 985555), (95, 788444), (190, 394222), (380, 197111), (439, 170620), (449, 166820), (878, 85310), (898, 83410), (1756, 42655), (1796, 41705), (2195, 34124), (2245, 33364), (4390, 17062), (4490, 16682), (8341, 8980), (8531, 8780)]