398676876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{20123}}^1$

素因数の和:20270

約数の個数: 48

約数和(自身を含む): 1009741824

約数和(自身を除く): 611064948

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 127, 156, 254, 381, 508, 762, 1524, 1651, 3302, 4953, 6604, 9906, 19812, 20123, 40246, 60369, 80492, 120738, 241476, 261599, 523198, 784797, 1046396, 1569594, 2555621, 3139188, 5111242, 7666863, 10222484, 15333726, 30667452, 33223073, 66446146, 99669219, 132892292, 199338438, 398676876]

約数ペア:

[(1, 398676876), (2, 199338438), (3, 132892292), (4, 99669219), (6, 66446146), (12, 33223073), (13, 30667452), (26, 15333726), (39, 10222484), (52, 7666863), (78, 5111242), (127, 3139188), (156, 2555621), (254, 1569594), (381, 1046396), (508, 784797), (762, 523198), (1524, 261599), (1651, 241476), (3302, 120738), (4953, 80492), (6604, 60369), (9906, 40246), (19812, 20123)]