390681902

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{6827}}^1$

素因数の和:6944

約数の個数: 32

約数和(自身を含む): 660731904

約数和(自身を除く): 270050002

約数列:

[1, 2, 13, 26, 31, 62, 71, 142, 403, 806, 923, 1846, 2201, 4402, 6827, 13654, 28613, 57226, 88751, 177502, 211637, 423274, 484717, 969434, 2751281, 5502562, 6301321, 12602642, 15026227, 30052454, 195340951, 390681902]

約数ペア:

[(1, 390681902), (2, 195340951), (13, 30052454), (26, 15026227), (31, 12602642), (62, 6301321), (71, 5502562), (142, 2751281), (403, 969434), (806, 484717), (923, 423274), (1846, 211637), (2201, 177502), (4402, 88751), (6827, 57226), (13654, 28613)]