7887225340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1973}}^1\times {\mathrm{1979}}^1$

素因数の和:4062

約数の個数: 48

約数和(自身を含む): 16744099680

約数和(自身を除く): 8856874340

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1973, 1979, 2020, 3946, 3958, 7892, 7916, 9865, 9895, 19730, 19790, 39460, 39580, 199273, 199879, 398546, 399758, 797092, 799516, 996365, 999395, 1992730, 1998790, 3904567, 3985460, 3997580, 7809134, 15618268, 19522835, 39045670, 78091340, 394361267, 788722534, 1577445068, 1971806335, 3943612670, 7887225340]

約数ペア:

[(1, 7887225340), (2, 3943612670), (4, 1971806335), (5, 1577445068), (10, 788722534), (20, 394361267), (101, 78091340), (202, 39045670), (404, 19522835), (505, 15618268), (1010, 7809134), (1973, 3997580), (1979, 3985460), (2020, 3904567), (3946, 1998790), (3958, 1992730), (7892, 999395), (7916, 996365), (9865, 799516), (9895, 797092), (19730, 399758), (19790, 398546), (39460, 199879), (39580, 199273)]