4129281680

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{132689}}^1$

素因数の和:133091

約数の個数: 40

約数和(自身を含む): 9625332600

約数和(自身を除く): 5496050920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 15560, 31120, 132689, 265378, 530756, 663445, 1061512, 1326890, 2123024, 2653780, 5307560, 10615120, 51616021, 103232042, 206464084, 258080105, 412928168, 516160210, 825856336, 1032320420, 2064640840, 4129281680]

約数ペア:

[(1, 4129281680), (2, 2064640840), (4, 1032320420), (5, 825856336), (8, 516160210), (10, 412928168), (16, 258080105), (20, 206464084), (40, 103232042), (80, 51616021), (389, 10615120), (778, 5307560), (1556, 2653780), (1945, 2123024), (3112, 1326890), (3890, 1061512), (6224, 663445), (7780, 530756), (15560, 265378), (31120, 132689)]