25377140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 54792192

約数和(自身を除く): 29415052

約数列:

[1, 2, 4, 5, 10, 20, 97, 103, 127, 194, 206, 254, 388, 412, 485, 508, 515, 635, 970, 1030, 1270, 1940, 2060, 2540, 9991, 12319, 13081, 19982, 24638, 26162, 39964, 49276, 49955, 52324, 61595, 65405, 99910, 123190, 130810, 199820, 246380, 261620, 1268857, 2537714, 5075428, 6344285, 12688570, 25377140]

約数ペア:

[(1, 25377140), (2, 12688570), (4, 6344285), (5, 5075428), (10, 2537714), (20, 1268857), (97, 261620), (103, 246380), (127, 199820), (194, 130810), (206, 123190), (254, 99910), (388, 65405), (412, 61595), (485, 52324), (508, 49955), (515, 49276), (635, 39964), (970, 26162), (1030, 24638), (1270, 19982), (1940, 13081), (2060, 12319), (2540, 9991)]