15648440

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2027}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 35408880

約数和(自身を除く): 19760440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2027, 3860, 4054, 7720, 8108, 10135, 16216, 20270, 40540, 81080, 391211, 782422, 1564844, 1956055, 3129688, 3912110, 7824220, 15648440]

約数ペア:

[(1, 15648440), (2, 7824220), (4, 3912110), (5, 3129688), (8, 1956055), (10, 1564844), (20, 782422), (40, 391211), (193, 81080), (386, 40540), (772, 20270), (965, 16216), (1544, 10135), (1930, 8108), (2027, 7720), (3860, 4054)]