28344640

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:995

約数の個数: 56

約数和(自身を含む): 68241672

約数和(自身を除く): 39897032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 877, 1010, 1616, 1754, 2020, 3232, 3508, 4040, 4385, 6464, 7016, 8080, 8770, 14032, 16160, 17540, 28064, 32320, 35080, 56128, 70160, 88577, 140320, 177154, 280640, 354308, 442885, 708616, 885770, 1417232, 1771540, 2834464, 3543080, 5668928, 7086160, 14172320, 28344640]

約数ペア:

[(1, 28344640), (2, 14172320), (4, 7086160), (5, 5668928), (8, 3543080), (10, 2834464), (16, 1771540), (20, 1417232), (32, 885770), (40, 708616), (64, 442885), (80, 354308), (101, 280640), (160, 177154), (202, 140320), (320, 88577), (404, 70160), (505, 56128), (808, 35080), (877, 32320), (1010, 28064), (1616, 17540), (1754, 16160), (2020, 14032), (3232, 8770), (3508, 8080), (4040, 7016), (4385, 6464)]