28270640

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1831}}^1$

素因数の和:2037

約数の個数: 40

約数和(自身を含む): 66105888

約数和(自身を除く): 37835248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1831, 1930, 3088, 3662, 3860, 7324, 7720, 9155, 14648, 15440, 18310, 29296, 36620, 73240, 146480, 353383, 706766, 1413532, 1766915, 2827064, 3533830, 5654128, 7067660, 14135320, 28270640]

約数ペア:

[(1, 28270640), (2, 14135320), (4, 7067660), (5, 5654128), (8, 3533830), (10, 2827064), (16, 1766915), (20, 1413532), (40, 706766), (80, 353383), (193, 146480), (386, 73240), (772, 36620), (965, 29296), (1544, 18310), (1831, 15440), (1930, 14648), (3088, 9155), (3662, 7720), (3860, 7324)]