28146680

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6967}}^1$

素因数の和:7079

約数の個数: 32

約数和(自身を含む): 63966240

約数和(自身を除く): 35819560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 6967, 13934, 27868, 34835, 55736, 69670, 139340, 278680, 703667, 1407334, 2814668, 3518335, 5629336, 7036670, 14073340, 28146680]

約数ペア:

[(1, 28146680), (2, 14073340), (4, 7036670), (5, 5629336), (8, 3518335), (10, 2814668), (20, 1407334), (40, 703667), (101, 278680), (202, 139340), (404, 69670), (505, 55736), (808, 34835), (1010, 27868), (2020, 13934), (4040, 6967)]