131886440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{67289}}^1$

素因数の和:67314

約数の個数: 48

約数和(自身を含む): 345197700

約数和(自身を除く): 213311260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 67289, 134578, 269156, 336445, 471023, 538312, 672890, 942046, 1345780, 1884092, 2355115, 2691560, 3297161, 3768184, 4710230, 6594322, 9420460, 13188644, 16485805, 18840920, 26377288, 32971610, 65943220, 131886440]

約数ペア:

[(1, 131886440), (2, 65943220), (4, 32971610), (5, 26377288), (7, 18840920), (8, 16485805), (10, 13188644), (14, 9420460), (20, 6594322), (28, 4710230), (35, 3768184), (40, 3297161), (49, 2691560), (56, 2355115), (70, 1884092), (98, 1345780), (140, 942046), (196, 672890), (245, 538312), (280, 471023), (392, 336445), (490, 269156), (980, 134578), (1960, 67289)]