12420925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 36

約数和(自身を含む): 17731008

約数和(自身を除く): 5310083

約数列:

[1, 5, 11, 25, 31, 47, 55, 155, 235, 275, 341, 517, 775, 961, 1175, 1457, 1705, 2585, 4805, 7285, 8525, 10571, 12925, 16027, 24025, 36425, 45167, 52855, 80135, 225835, 264275, 400675, 496837, 1129175, 2484185, 12420925]

約数ペア:

[(1, 12420925), (5, 2484185), (11, 1129175), (25, 496837), (31, 400675), (47, 264275), (55, 225835), (155, 80135), (235, 52855), (275, 45167), (341, 36425), (517, 24025), (775, 16027), (961, 12925), (1175, 10571), (1457, 8525), (1705, 7285), (2585, 4805)]