28147120

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1823}}^1$

素因数の和:2029

約数の個数: 40

約数和(自身を含む): 65817216

約数和(自身を除く): 37670096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1823, 1930, 3088, 3646, 3860, 7292, 7720, 9115, 14584, 15440, 18230, 29168, 36460, 72920, 145840, 351839, 703678, 1407356, 1759195, 2814712, 3518390, 5629424, 7036780, 14073560, 28147120]

約数ペア:

[(1, 28147120), (2, 14073560), (4, 7036780), (5, 5629424), (8, 3518390), (10, 2814712), (16, 1759195), (20, 1407356), (40, 703678), (80, 351839), (193, 145840), (386, 72920), (772, 36460), (965, 29168), (1544, 18230), (1823, 15440), (1930, 14584), (3088, 9115), (3646, 7720), (3860, 7292)]