78123004

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1979}}^1$

素因数の和:2193

約数の個数: 24

約数和(自身を含む): 139708800

約数和(自身を除く): 61585796

約数列:

[1, 2, 4, 71, 139, 142, 278, 284, 556, 1979, 3958, 7916, 9869, 19738, 39476, 140509, 275081, 281018, 550162, 562036, 1100324, 19530751, 39061502, 78123004]

約数ペア:

[(1, 78123004), (2, 39061502), (4, 19530751), (71, 1100324), (139, 562036), (142, 550162), (278, 281018), (284, 275081), (556, 140509), (1979, 39476), (3958, 19738), (7916, 9869)]