138767440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247799}}^1$

素因数の和:247819

約数の個数: 40

約数和(自身を含む): 368726400

約数和(自身を除く): 229958960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247799, 495598, 991196, 1238995, 1734593, 1982392, 2477990, 3469186, 3964784, 4955980, 6938372, 8672965, 9911960, 13876744, 17345930, 19823920, 27753488, 34691860, 69383720, 138767440]

約数ペア:

[(1, 138767440), (2, 69383720), (4, 34691860), (5, 27753488), (7, 19823920), (8, 17345930), (10, 13876744), (14, 9911960), (16, 8672965), (20, 6938372), (28, 4955980), (35, 3964784), (40, 3469186), (56, 2477990), (70, 1982392), (80, 1734593), (112, 1238995), (140, 991196), (280, 495598), (560, 247799)]