66818780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{477277}}^1$

素因数の和:477293

約数の個数: 24

約数和(自身を含む): 160365408

約数和(自身を除く): 93546628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 477277, 954554, 1909108, 2386385, 3340939, 4772770, 6681878, 9545540, 13363756, 16704695, 33409390, 66818780]

約数ペア:

[(1, 66818780), (2, 33409390), (4, 16704695), (5, 13363756), (7, 9545540), (10, 6681878), (14, 4772770), (20, 3340939), (28, 2386385), (35, 1909108), (70, 954554), (140, 477277)]