123207578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2153}}^1$

素因数の和:2270

約数の個数: 32

約数和(自身を含む): 208438272

約数和(自身を除く): 85230694

約数列:

[1, 2, 13, 26, 31, 62, 71, 142, 403, 806, 923, 1846, 2153, 2201, 4306, 4402, 27989, 28613, 55978, 57226, 66743, 133486, 152863, 305726, 867659, 1735318, 1987219, 3974438, 4738753, 9477506, 61603789, 123207578]

約数ペア:

[(1, 123207578), (2, 61603789), (13, 9477506), (26, 4738753), (31, 3974438), (62, 1987219), (71, 1735318), (142, 867659), (403, 305726), (806, 152863), (923, 133486), (1846, 66743), (2153, 57226), (2201, 55978), (4306, 28613), (4402, 27989)]