26739860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 64471680

約数和(自身を除く): 37731820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 491, 778, 982, 1556, 1945, 1964, 2455, 2723, 3437, 3890, 4910, 5446, 6874, 7780, 9820, 10892, 13615, 13748, 17185, 27230, 34370, 54460, 68740, 190999, 381998, 763996, 954995, 1336993, 1909990, 2673986, 3819980, 5347972, 6684965, 13369930, 26739860]

約数ペア:

[(1, 26739860), (2, 13369930), (4, 6684965), (5, 5347972), (7, 3819980), (10, 2673986), (14, 1909990), (20, 1336993), (28, 954995), (35, 763996), (70, 381998), (140, 190999), (389, 68740), (491, 54460), (778, 34370), (982, 27230), (1556, 17185), (1945, 13748), (1964, 13615), (2455, 10892), (2723, 9820), (3437, 7780), (3890, 6874), (4910, 5446)]